Search Results: "conjugate acid- pairs | acids bases | chemistry | khan academy"

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02:14 Popular
Why Pets Have Surprisingly Small Brains

3,100 views / 0 likes - added 6 years ago

Thanks to 23andMe for sponsoring this video! http://www.23andme.com/minuteearth If you live outside the US, click here: https://www.23andme.com/ When we domesticate an animal species, their brains shrink and they freak out less. Thanks also to our support
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The Bugs in Your Food and Makeup | How to Make Everything

434 views / 0 likes - added 6 years ago

Get your Videoblocks Free Trial here: http://videoblocks.com/HowToMakeEverything_0917 Before beginning my attempt to make my own cosmetics and makeup from scratch, I pay a visit to Azteca Color in Oaxaca City, Mexico to learn how to raise and harvest the
02:16
Do You Have ADHD or Are You Just Tired?

494 views / 0 likes - added 6 years ago

A new study suggests that ADHD might actually be a sleep disorder-- a suggestion that, if true, could revolutionize the way we treat it. Why Does White Noise Make You Fall Asleep? - https://youtu.be/8ZGx0W9i5gE Read More: Is ADHD really a sleep problem? h
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Helium (some extra stuff) - Periodic Table of Videos

441 views / 0 likes - added 6 years ago

More about Helium. The main video is at https://youtu.be/M6xZZiaLOV4 More links and info in full description ↓↓↓ Featuring Sir Martyn Poliakoff and Neil Barnes. Support us on Patreon: https://www.patreon.com/periodicvideos Discuss this video on Brady's su
01:41
Japan's “blade library” loans out prosthetic limbs

499 views / 0 likes - added 6 years ago

These prosthetic limbs, which typically cost thousands, are being rented out in Tokyo for $9. SUBSCRIBE: https://goo.gl/kdDpXu Why did it take so long for Harvey Weinstein to be outed for allegedly sexually harassing or abusing more than a dozen women? It
05:24
3 Brand New Colors That Scientists Discovered

657 views / 1 likes - added 6 years ago

For millennia, we mostly had to make do with natural pigments and dyes, but in the last 300 years or so, chemical synthesis has revolutionized the colors of our world. We're conducting a survey of our viewers! If you have time, please give us feedback: ht
11:11 Popular
Helium (new) - Periodic Table of Videos

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Here's a new video about Helium. More links and info in full description ↓↓↓ All 118 elements: http://bit.ly/118elements Support us on Patreon: https://www.patreon.com/periodicvideos More chemistry at http://www.periodicvideos.com/ Follow us on Facebook a
02:40
Meet the Female Chemist Blowing Up Stereotypes

548 views / 1 likes - added 6 years ago

At the University of Texas, Dr. Kate Biberdorf is breaking stereotypes and blowing stuff up—all in a good pair of heels. Through her theatrical and dynamic approach to teaching, Dr. Biberdorf is breaking the stigma of what a stereotypical scientist looks
01:19 Popular
Magic Milk Chemistry Experiment

905 views / 1 likes - added 6 years ago

Dip the q-tip in dish-washing detergent. Place food coloring in the middle of the bowl with milk. Touch the color with the q-tip. The detergent will start to bond with the fats in the milk which will get all the molecules moving, carrying with them also t
01:58 Popular
What Makes Some Dogs More Aggressive? | Nat Geo Wild

980 views / 2 likes - added 6 years ago

Scientists are starting to identify the chemical differences among dogs of varying dispositions, a step toward understanding aggressive behavior. ➡ Subscribe: http://bit.ly/NatGeoWILDSubscribe About Nat Geo Wild: Welcome to a place so wild, anything can h
02:09 Popular
Teen Titans Go! | The Titans Academy Awards | Cartoon Network

1,202 views / 1 likes - added 6 years ago

Robin creates the Teen Titan Awards in an effort to get his teammates to clean up the Tower. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/VgnfHu About Teen Titans GO!: TEEN TITANS GO! is a comedy featuring the
05:36
The Whales of New York

694 views / 2 likes - added 6 years ago

*** We're now on Patreon! http://www.patreon.com/scifri - Please Help Support Our Video Productions! *** Within sight of the famous New York skyline, you might see something unexpected—whales. Vast schools of menhaden baitfish swirl in the New York Bight,
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The 2017 Nobel Prizes: Biological Clocks and Microscopy

613 views / 0 likes - added 6 years ago

Last week, the recipients of the 2017 Nobel Prizes were announced. We take a closer look at the winners of the Physiology and Chemistry Awards, whose breakthroughs change the way we study sleep, and allow us to look at microscopic biological systems in a
02:59 Popular
Where Do Our Drugs Come From?

844 views / 0 likes - added 6 years ago

The incredible chemical weapon-making abilities of fungi, bacteria, and plants have created a diverse array of compounds that are useful to humans. Thanks to the University of Minnesota for sponsoring this video! http://twin-cities.umn.edu/ Thanks also to
12:59
Francium (new video) - Periodic Table of Videos

514 views / 1 likes - added 6 years ago

A new video about Francium. More links and info in full description ↓↓↓ Underwater Caesium: https://youtu.be/b2YrZNahqiw Videos on all elements: http://bit.ly/118elements Support us on Patreon: https://www.patreon.com/periodicvideos With thanks to Maurici
10:17 Popular
The Coolest Dry Ice and Soda Science Experiment Challenge DIY

818 views / 2 likes - added 6 years ago

Hi guys! In this awesome science experiment I'll show you how to make a dry ice bubble using soda! It's a chemistry physics and science challenge all in one! I used blue fanta soda to make a giant dry ice bubble. I also show you other cool dry ice science
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Engines of Destruction: The Science of Hurricanes!

675 views / 3 likes - added 6 years ago

The physics of the perfect storm… Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Get yourself an awesome IOTBS shirt! http://dftba.com/besmart Learn more/references: “Divine Wi
04:41 Popular
Do You Really Have Two Brains?

910 views / 2 likes - added 6 years ago

You’re gonna lobe this video Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Are you a left-brained person or a right-brained person? Spoiler: You’re neither. Each of us uses both sides of our brain for
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02:25 Popular
Triple Point of Water - Ice, Liquid, Vapor at the Same Time!

1,173 views / 0 likes - added 6 years ago

This was obtained with a standard vacuum pump. A petri dish with sulfuric acid is also included under the Bell Jar to serve as a sink for all the high energy water molecules that vaporize during the experiment.
02:59 Popular
Why Do India And China Have So Many People?

778 views / 1 likes - added 6 years ago

Please subscribe! http://goo.gl/EpIDGd And support us on Patreon: https://www.patreon.com/MinuteEarth India and China have so many people today because they’re good for farming and big, but they’ve always been that way, so they’ve actually had a huge prop
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10:45
Technetium (new video) - Periodic Table of Videos

447 views / 1 likes - added 6 years ago

Technetium was the first artificial element. More links and info in full description below ↓↓↓ Support us on Patreon: https://www.patreon.com/periodicvideos Elements Playlist: http://bit.ly/118elements Discuss this video on Brady's subreddit: https://redd
08:14 Popular
10 Amazing Science Experiments! Compilation

711 views / 0 likes - added 6 years ago

This video is a compilation of 10 cool science experiments. 0:00 Jet engine in a jar 0:52 Traveling flame 1:16 Soapy water and gas 1:50 Drain cleaner and aluminium foil reaction 2:58 Brake fluid and pool chlorine 3:24 Coca Cola and pool chlorine reaction
10:12 Popular
20 Amazing Science Experiments and Optical Illusions! Compilation

1,528 views / 4 likes - added 6 years ago

This video is a compilation of 20 amazing science experiments. 00:02 Flammable hand sanitizer 00:25 Coca Cola and Pool chlorine reaction 00:47 Traveling Flame 01:04 Animated Optical Illusions 01:27 Jet Engine in a Jar 01:54 Hot Ice 02:48 Coca Cola VS Coca
03:18 Popular
Why Is Syrup Sticky?

820 views / 0 likes - added 6 years ago

Give Blinkist a try! https://www.blinkist.com/MinuteEarth What exactly makes sugary syrups so sticky, when neither water nor sugar is very sticky on its own? Support MinuteEarth on Patreon: http://www.patreon.com/minuteearth ______________________________
08:26
Conjugate acid-base pairs | Acids and bases | Chemistry | Khan Academy

587 views / 0 likes - added 6 years ago

Introduction to conjugate acid-base pairs. Definition and examples of conjugate acid-base pairs. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivit
07:57 Popular
Le Chatelier's principle: Worked example | Chemical equilibrium | Chemistry | Khan Academy

944 views / 0 likes - added 6 years ago

A worked example using Le Chatelier's principle to predict how concentrations will shift for different perturbations. Example includes changes in reaction vessel volume, changing amount of solid product, adding inert gas, and adding a catalyst. Chemistry
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Introduction to reaction quotient Qc | Chemical equilibrium | Chemistry | Khan Academy

653 views / 0 likes - added 6 years ago

Introduction to the reaction quotient Qc, and how to use the reaction quotient to predict how the reaction concentrations will change. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its
11:47 Popular
Bond enthalpy and enthalpy of reaction | Chemistry | Khan Academy

1,152 views / 0 likes - added 6 years ago

Introduction to bond enthalpy, and how to use bond enthalpies to calculate enthalpy of reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/enthalpy-chemistry-sal/v/2015-ap-chemistry-free-response-7?utm_s
07:14 Popular
Calculating internal energy and work example | Chemistry | Khan Academy

1,096 views / 0 likes - added 6 years ago

Worked example calculating the change in internal energy for a gas using the first law of thermodynamics. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/internal-energy-sal/v/specific-heat-and-latent-leat-of-
05:53
Comparing Q vs K example | Chemical equilibrium | Chemistry | Khan Academy

589 views / 0 likes - added 6 years ago

A worked example using reaction quotient Q to predict how concentrations will shift so the reaction can get to equilibrium. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acids-and-bases-topic/acids-and-bases/v/arrhenius-definition-o
07:33 Popular
Ways to get a buffer solution | Chemistry | Khan Academy

1,260 views / 0 likes - added 6 years ago

Describes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and a strong base. Watch the next l
06:13 Popular
Rate constant k from half-life example | Knetics | Chemistry | Khan Academy

932 views / 0 likes - added 6 years ago

Example problem showing how to find the rate constant k from the half-life of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/copy-of-kinetics/v/second-order-reaction-with-calculus?utm_source=YT&u
06:19
AP Chemistry multiple choice sample: Boiling points

536 views / 1 likes - added 6 years ago

Comparing the boiling point of nonane and 2,3,4-trifluoropentane. A sample multiple choice problem from the 2014 AP course description.
06:52
2015 AP chemistry free response 5a

489 views / 0 likes - added 6 years ago

Finding the order of reaction for kinetics of bleaching food coloring. An alternative method of solving 2015 AP Chemistry free response 5a.
07:50 Popular
pH and pKa relationship for buffers | Chemistry | Khan Academy

834 views / 0 likes - added 6 years ago

How the Henderson-Hasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acid-base-equilibrium/buffer-solutions/v/
06:47 Popular
Noble gas configuration

781 views / 0 likes - added 6 years ago

How to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity
07:45 Popular
Introduction to chemistry

812 views / 0 likes - added 6 years ago

A big picture intro to chemistry and why it is fascinating. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a fir
1:10:07
Khan Academy Live: AP Calculus

592 views / 0 likes - added 6 years ago

Taking AP Calculus? Prep for the exam with our free live tutoring session. Dave, one of our calculus experts, will review key concepts, solve sample questions, and share ways to avoid common mistakes. Prep for your AP Calculus exams on Khan Academy: https
1:02:43
Khan Academy Live: AP US History

661 views / 0 likes - added 6 years ago

Taking AP US History? Prep for the AP exam with our free live tutoring session. Kim, our history expert, will share tips and strategies for the exam. Study for AP US History on Khan Academy: https://www.khanacademy.org/humanities/us-history/ap-us-history
48:26 Popular
Khan Academy Live: SAT Math

792 views / 0 likes - added 6 years ago

Need help with SAT math? Join Eric, one of Khan Academy’s SAT experts, for an SAT math class. Eric reviews some of the most important math skills for the test and provides tips on how to avoid careless mistakes. This is a recording of our May 16 livestrea
51:15 Popular
Khan Academy Live: SAT Writing

725 views / 0 likes - added 6 years ago

Need help with SAT writing? Join Eric, one of Khan Academy’s SAT experts, for a live SAT writing class Tuesday, May 30 at 7 pm ET/4pm PT. It’s free! Eric will walk through key grammar concepts like subject-verb agreement and sentence punctuation. Can’t ma
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Under- and overstatement | Style | Grammar

457 views / 0 likes - added 6 years ago

This is, bar none, the greatest video Khan Academy has ever made, although I may be slightly overstating that. Learn how to master this style by following along.
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Parallel structure | Syntax | Khan Academy

660 views / 0 likes - added 6 years ago

Parallel structure isn’t a set rule, but more of a stylistic choice: it helps sentence elements maintain a pattern. This is a very special episode because it’s Paige’s last video with us as a KA intern! We will miss having Paige as a contributor to the Gr
04:44 Popular
Relative clauses | Syntax | Khan Academy

752 views / 0 likes - added 6 years ago

A relative pronoun is a word like “that” or “which” or “who”, so a relative clause is a clause that begins with a relative pronoun. In the sentence “The dragon who breathed blue fire has retired,” “who breathed blue fire” is a relative clause. Learn more
07:04 Popular
Dependent and independent clauses | Syntax | Khan Academy

1,285 views / 0 likes - added 6 years ago

Independent clauses can stand on their own as sentences, but dependent clauses can’t. We’ll take a closer look at what this means. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dependent-and-independent-clauses Wat
05:57 Popular
Phrases and clauses | Syntax | Khan Academy

1,524 views / 0 likes - added 6 years ago

A phrase is any collection of words that behaves like a part of speech, like a noun phrase (“my brother Stu”), an adjectival phrase (“in a different shade of blue”), or an adverbial phrase (“with elegance and tact”). A clause is any noun phrase plus a ver
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Dangling modifiers | Syntax | Khan Academy

595 views / 0 likes - added 6 years ago

A modifying word or phrase “dangles” when it doesn’t apply to the word it’s supposed to modify. Learn how to spot and fix this problem! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dangling-modifiers/ Watch the ne
04:43
Subject, direct object, and indirect object | Syntax | Khan Academy

664 views / 0 likes - added 6 years ago

A subject is the noun phrase that drives the action of a sentence; in the sentence “Jake ate cereal,” Jake is the subject. The direct object is the thing that the subject acts upon, so in that last sentence, “cereal” is the direct object; it’s the thing J
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Subjects and predicates | Syntax | Khan Academy

661 views / 0 likes - added 6 years ago

A subject is the noun or pronoun-based part of a sentence, and a predicate is the verb-based part that the subject performs. Let’s explore how that works in context. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/id
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Run-ons and comma splices | Syntax | Khan Academy

604 views / 0 likes - added 6 years ago

A run-on sentence doesn’t separate any of its independent clauses with the punctuation that it needs, and a comma splice incorrectly separates two independent clauses with a comma, instead of a comma-and-coordinating-conjunction. Practice this yourself on
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Recognizing fragments | Syntax | Khan Academy

494 views / 0 likes - added 6 years ago

A sentence fragment is a chunk of language that hasn’t made it all the way to being a working sentence; it might be missing a verb, or there might not be a subject. Learn how to turn a fragment into a sentence in this video! Practice this yourself on Khan
04:07 Popular
Pronoun-antecedent agreement | Syntax | Khan Academy

781 views / 0 likes - added 6 years ago

An antecedent is “the thing that came before”. When you use a pronoun, it’s standing in for a word you used previously—that’s the antecedent. Join us as we demonstrate how to make sure that your pronouns and antecedents match up with one another: that’s c
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Subject-verb agreement | Syntax | Khan Academy

631 views / 0 likes - added 6 years ago

Agreement is the art of making sure that sentence parts agree with one another; you want to make sure that your subjects and verbs match up. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/subject-verb-agreement Watc
04:14 Popular
Compound-complex sentences | Syntax | Khan Academy

852 views / 0 likes - added 6 years ago

Compound-complex sentences are compound sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot and use them. Practice this yourself on Khan Academy right now www.khanacademy.org/syntax/e/complex-and-compound-com
05:07 Popular
Complex sentences | Syntax | Khan Academy

779 views / 0 likes - added 6 years ago

Complex sentences are simple sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot them and use them in this video. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/syntax/v/compound-comple
04:29 Popular
Simple and compound sentences | Syntax | Khan Academy

926 views / 0 likes - added 6 years ago

A simple sentence contains one independent clause. A compound sentence contains more than one! Put another way: a simple sentence contains a subject and a predicate, but a compound sentence contains more than one subject and more than one predicate. Pract
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Exclamations | Syntax | Khan Academy

479 views / 0 likes - added 6 years ago

An exclamation is a sentence that expresses great emotion! David and Paige covered declarative, interrogative, and imperative sentences; now they tackle a fourth type of sentence that ends in an exclamation mark. Find out more! Watch the next lesson: http
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Three types of sentence | Syntax | Khan Academy

643 views / 0 likes - added 6 years ago

Three essential types of sentence are declarative sentences (which are statements), interrogative sentences (which are questions), and imperative sentences (which are orders). Join us as we give examples of each! Practice this yourself on Khan Academy rig
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What is a sentence? | Syntax | Khan Academy

565 views / 0 likes - added 6 years ago

A sentence is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate. David and Paige explore this division across several different example sentences. Watch the next lesson:
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BONUS: "FANBOYS," a mnemonic song | Conjunctions | Parts of speech| Khan Academy

1,577 views / 0 likes - added 6 years ago

FANBOYS" is a mnemonic device you can use to help remember the coordinating conjunctions of English. Team Grammar made this video, figuring that we couldn't very well cover conjunctions without writing a song, now could we? If you're moved to make your ow
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Ellipses | Punctuation | Khan Academy

674 views / 0 likes - added 6 years ago

Ellipses are three little dots that we use to show a pause or that a portion of a quote has been removed. Learn how to use them in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/introd
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Parentheses | Punctuation | Khan Academy

412 views / 0 likes - added 6 years ago

Parentheses set off extra information (such as a writer's remarks, an interruption, or a reference) from the rest of a sentence. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneo
04:51 Popular
Hyphens vs. dashes | Punctuation | Khan Academy

841 views / 1 likes - added 6 years ago

Hyphens and dashes look pretty similar, but their uses are very different! Learn when to use each one in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/dashes-and-hyphens Watch the nex
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Dashes | Punctuation | Khan Academy

516 views / 0 likes - added 6 years ago

Dashes are like little actors—they can behave like colons, pairs of commas, or parentheses. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/introduction-to-the-
03:13
Using quotation marks in titles | Punctuation | Khan Academy

568 views / 0 likes - added 6 years ago

Learn how to use quotation marks to title things like poems, songs, and episodes of TV shows. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/italics--underlines--and-quotes/ Watch the next lesson:
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How to use italics and underlines | Punctuation | Khan Academy

571 views / 0 likes - added 6 years ago

Learn how to use italics and underlines when writing the titles of works or when emphasizing a particular word or phrase. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/italics--underlines--and-qu
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BONUS: History of the possessive apostrophe | The Apostrophe | Punctuation | Khan Academy

595 views / 0 likes - added 6 years ago

David, Paige, and Jake cover the fascinating history of the possessive apostrophe. Stay tuned for this bonus video! Missed the previous lesson? Watch here: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/v/bonus-history-of-the-ap
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BONUS: History of the apostrophe | The Apostrophe | Punctuation | Khan Academy

467 views / 0 likes - added 6 years ago

The apostrophe has a bizarre history, including being the name for something that's not really related to grammar at all. David, Paige, and special guest Jake explain. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-a
02:31
Choosing between its and it’s | The Apostrophe | Punctuation | Khan Academy

533 views / 1 likes - added 6 years ago

David and Paige explain the meaning of two English words that look and sound very similar but act very different: _its_ and _it's_. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe
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Apostrophes and plurals | The Apostrophe | Punctuation | Khan Academy

466 views / 0 likes - added 6 years ago

There is *one* extremely rare case in which we use apostrophes to make things plural. David and Paige, KA's resident grammarians, discuss this unusual case. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/p
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Advanced (plural) possession | The Apostrophe | Punctuation | Khan Academy

563 views / 0 likes - added 6 years ago

Paige and David talk about using apostrophes to show that something belongs to multiple people. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/e/advanved--plural--possesion Watch
01:51
Possession for words ending in “s” | The Apostrophe | Punctuation | Khan Academy

512 views / 0 likes - added 6 years ago

Do words that end in "s" still need _'s_ to show possession? David and Paige explain! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/introduction-to-the-possessive-case Watch the next lesson: https://www.kha
03:45
Introduction to the possessive | The Apostrophe | Punctuation | Khan Academy

608 views / 0 likes - added 6 years ago

Apostrophes can help show when something belongs to someone. Paige and David explain how! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/introduction-to-the-possessive-case Watch the next lesson: https://www
03:36 Popular
Introduction to contractions | The Apostrophe | Punctuation | Khan Academy

940 views / 1 likes - added 6 years ago

Apostrophes are great at standing in for missing letters, allowing us to shorten words. Paige and David discuss contractions and the Principle of Least Effort. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/
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Introduction to the apostrophe | The Apostrophe | Punctuation | Khan Academy

608 views / 0 likes - added 6 years ago

David and Paige, KA’s resident grammarians, introduce a new piece of punctuation: the apostrophe! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-comma/e/introduction-to-the-apostrophe Watch the next lesson: https://www.k
03:43 Popular
BONUS: The Oxford comma | Punctuation | Grammar | Khan Academy

853 views / 0 likes - added 6 years ago

David and Paige tackle the great comma debate of our time: Oxford comma or no Oxford comma? Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/appositives-the-comma-punctuation-khan-academy?utm_source=YT&utm
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Appositives | Punctuation | Grammar | Khan Academy

632 views / 0 likes - added 6 years ago

David and Paige, KA’s resident grammarians, cover appositives and how to use commas along with them. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/appositives?utm_source=YT&utm_med
03:00 Popular
Commas in dialogue | Punctuation | Grammar | Khan Academy

1,170 views / 1 likes - added 6 years ago

“Today we’re going to talk about using commas in dialogue,” said David and Paige, KA’s resident grammarians. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/commas-in-dialogue?utm_so
03:24 Popular
More uses for commas | Punctuation | Grammar | Khan Academy

805 views / 0 likes - added 6 years ago

David and Paige, KA’s resident grammarians, discuss tag questions, yes and no statements, and direct address -- all situations where the comma is super useful. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/c
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Punctuating a list | Punctuation | Grammar | Khan Academy

584 views / 0 likes - added 6 years ago

Learn how to use commas to punctuate a written list of people, things, actions, or events. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/punctuating-lists?utm_source=YT&utm_medium=
04:35
Commas and introductory elements | Punctuation | Grammar | Khan Academy

531 views / 0 likes - added 6 years ago

In English, you use commas to separate introductory elements from the rest of a sentence. Find out how with David and Paige! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/commas-an
03:19 Popular
Commas in space and time | The Comma | Punctuation | Khan Academy

827 views / 0 likes - added 6 years ago

Learn how to use commas when writing addresses (in space) and dates (in time). Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/salutations--valedictions--dates--and-addresses Watch t
02:18 Popular
Salutations and valedictions | Punctuation | Grammar | Khan Academy

829 views / 0 likes - added 6 years ago

David and Paige, KA’s resident grammarians, talk about how to address and sign off on letters using commas! Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/commas-in-space-and-time-the-comma-punctuation-khan-a
03:59 Popular
Meet the Comma | Punctuation | Grammar | Khan Academy

911 views / 1 likes - added 6 years ago

David and Paige introduce you to the superhero of the punctuation world: the comma! Practice this yourself on Khan Academy right now: . Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/
02:52
Three ways to end a sentence | Punctuation | Khan Academy

586 views / 0 likes - added 6 years ago

David and Paige, KA’s resident grammarians, introduce the three ways to end a sentence: the period, the exclamation point, and the question mark. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-comma/e/three-ways-to-end-a
06:08 Popular
Beginning sentences with conjunctions | The parts of speech | Grammar | Khan Academy

786 views / 0 likes - added 6 years ago

Is it okay to begin a sentence with a conjunction like "but" or "because"? Yes. David explains why. Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/v/correlative-conjunctions?utm_source=YT&utm_medium=D
03:12 Popular
Correlative conjunctions | The parts of speech | Grammar | Khan Academy

1,015 views / 0 likes - added 6 years ago

Correlative conjunctions work in pairs to connect parts of sentences. David teaches you how they do it! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/correlative-conjuntions?u
05:27 Popular
Subordinating conjunctions | The parts of speech | Grammar | Khan Academy

1,247 views / 0 likes - added 6 years ago

Subordinating conjunctions join two parts of complex sentences––independent clauses to dependent clauses. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/coo
04:33 Popular
Coordinating conjunctions | The parts of speech | Grammar | Khan Academy

997 views / 0 likes - added 6 years ago

Coordinating conjunctions connect parts of sentences to each other. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/meet-the-conjunction?utm_source=YT&utm_me
03:50
Adjectives and commas | Adjectives | Khan Academy

700 views / 1 likes - added 6 years ago

When using more than one adjective, sometimes you put a comma between them and sometimes you don't. Learn how to tell when you need a comma in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-modifier/e/commas-
09:03
BONUS VIDEO | Singular They | The parts of speech | Grammar | Khan Academy

517 views / 0 likes - added 6 years ago

You may have been hearing a lot about the "singular they" recently. But what is it? How does it work, what is its history, and is it grammatical? Let's find out. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-modif
02:55 Popular
Emphatic pronouns | The parts of speech | Grammar | Khan Academy

893 views / 0 likes - added 6 years ago

Sometimes we use reflexive pronouns like "myself" and "ourselves" for emphasis in a sentence, like, "If you won't help me, then I'll do it myself!" KA's Grammar Fellow, David, explains this usage. Practice this yourself on Khan Academy right now: https://
05:03 Popular
Indefinite Pronouns | The parts of speech | Grammar | Khan Academy

1,134 views / 0 likes - added 6 years ago

David, Khan Academy's Grammar Fellow, covers three nifty features of indefinite pronouns, which are pronouns that are just a little vague, y'know? Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspee
05:18 Popular
Pronoun number | The parts of speech | Grammar | Khan Academy

874 views / 0 likes - added 6 years ago

The difference between something being singular or plural is what we call 'grammatical number' in English. Here's how that idea applies to pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofsp
04:39 Popular
Grammatical person and pronouns | The parts of speech | Grammar | Khan Academy

874 views / 0 likes - added 6 years ago

There's this idea in grammar called grammatical person that helps describe who's being talked about in a sentence. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/parts
05:34
Subject and object pronouns | The parts of speech | Grammar | Khan Academy

531 views / 0 likes - added 6 years ago

Before we get any further with pronouns, let's cover what the difference between a subject and an object pronoun is, because the distinction between those two concepts will start coming up a good deal. Practice this yourself on Khan Academy right now: htt
04:47
Who versus whom | The parts of speech | Grammar | Khan Academy

598 views / 0 likes - added 6 years ago

When do you use who, and when do you use whom? David, KA's grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/relative-pronouns?utm_source=YT&utm_medium=Desc&u
05:41 Popular
That versus which | The parts of speech | Grammar | Khan Academy

970 views / 0 likes - added 6 years ago

Much has been made of the distinction between "that" and "which" in English, but it can mostly be summed up in two points: 1. "That" doesn't work so well with commas. 2. "Which" doesn't work so well with people. David the Grammarian explains. Watch the ne
01:56 Popular
Relative pronouns | The parts of speech | Grammar | Khan Academy

1,132 views / 0 likes - added 6 years ago

We use the relative pronouns to connect clauses together, like "the man *who sold the world* is coming over for dinner." David, KA's Grammar Fellow, explains. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/
05:10 Popular
Reflexive pronouns | The parts of speech | Grammar | Khan Academy

1,088 views / 0 likes - added 6 years ago

We use reflexive pronouns (like "herself" and "ourselves") when the subject and the object of a sentence are the same thing. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/gra
04:52
Possessive pronouns | The parts of speech | Grammar | Khan Academy

670 views / 0 likes - added 6 years ago

We can use pronouns to show possession relationships, describing what things belong to which people, like "her shoe" or "the book is mine." Possessive pronouns come in two flavors: adjective and noun! David, KA's resident grammarian, covers the difference
03:15
Personal pronouns | The parts of speech | Grammar | Khan Academy

654 views / 0 likes - added 6 years ago

Let's meet the personal pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/meet-the-personal-pronoun?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Watch the next less
02:00 Popular
What is a pronoun? | The parts of speech | Grammar | Khan Academy

1,078 views / 0 likes - added 6 years ago

Pronouns are words that can replace nouns, like the way "it" replaces "elephant" in "I looked at the elephant. It was grey." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/the-q
04:53 Popular
Modal verbs | The parts of speech | Grammar | Khan Academy

1,472 views / 0 likes - added 6 years ago

There's a class of helper verbs known as modals that we use to express a bunch of conditions: we can use them to give advice, make guesses at how necessary or likely something is, make requests of people, and so on. They're super useful. Practice this you
02:11
Perfect progressive aspect | The parts of speech | Grammar | Khan Academy

539 views / 0 likes - added 6 years ago

We use the perfect progressive aspect to talk about an action that was once ongoing, but has since completed, like "I had been waiting for twenty minutes." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/pa
02:31
Perfect Aspect | The parts of speech | Grammar | Khan Academy

689 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
02:45
Progressive Aspect | The parts of speech | Grammar | Khan Academy

528 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
01:32
Simple Aspect | The parts of speech | Grammar | Khan Academy

608 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
01:50
Introduction to verb aspect | The parts of speech | Grammar | Khan Academy

575 views / 0 likes - added 6 years ago

If verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
02:53 Popular
The truly irregular verbs | The parts of speech | Grammar | Khan Academy

1,034 views / 0 likes - added 6 years ago

Some irregular verbs just won't be categorized. They don't fit into neat little boxes. These are those verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/intro-to-irregular
03:14
The irregular verb gets taken for a ride | Grammar | Khan Academy

591 views / 0 likes - added 6 years ago

This group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs
03:11 Popular
The vowel-shift irregular verb | The parts of speech | Grammar | Khan Academy

1,190 views / 0 likes - added 6 years ago

This group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs
01:53
The funky -ed irregular verb | The parts of speech | Grammar | Khan Academy

572 views / 1 likes - added 6 years ago

These are the most regular of the irregular verbs; while they don't behave exactly like regular verbs, like present tense "walk" become past tense "walked", they do maintain the "-ed" sound. It's just spelled differently. Practice this yourself on Khan Ac
03:29
Introduction to irregular verbs | The parts of speech | Grammar | Khan Academy

568 views / 0 likes - added 6 years ago

Words like "walk" and "look" are regular verbs – they behave in a predictable way. But there's a whole class of words in English, called irregular verbs, that are harder to predict. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Acad
03:02 Popular
Linking verbs | The parts of speech | Grammar | Khan Academy

1,658 views / 0 likes - added 6 years ago

In a previous video, we established that one thing verbs can do is show actions, like "the bear runs." Verbs can also link ideas to one another, like "the bear looks cheerful." Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofs
02:54 Popular
Helping verbs | The parts of speech | Grammar | Khan Academy

1,152 views / 0 likes - added 6 years ago

We've established that verbs can show actions and link ideas together. Now, let's talk about how some verbs can be used to help other verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/gra
02:50 Popular
The future tense | The parts of speech | Grammar | Khan Academy

966 views / 0 likes - added 6 years ago

When you want to talk about the future in English, you use the future tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/linking-verbs-the-parts-of-speech-grammar?utm_source=YT&utm_medium=Desc&utm_ca
02:00 Popular
The past tense | The parts of speech | Grammar | Khan Academy

929 views / 0 likes - added 6 years ago

When you want to talk about events that have already happened, you use the past tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-future-tense-verbs-the-parts-of-speech?utm_source=YT&utm_medium=
02:01 Popular
The present tense | The parts of speech | Grammar | Khan Academy

810 views / 0 likes - added 6 years ago

How do we talk about things that are happening right now? Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-past-tense-verbs-the-parts-of-speech?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Misse
01:46 Popular
Introduction to verb tense | The parts of speech | Grammar | Khan Academy

811 views / 0 likes - added 6 years ago

An understanding of verb tense will make you into a TIME WIZARD, with the ability to control the past, the present, and the future – with your words, anyway. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/
01:26
Introduction to verbs | The parts of speech | Grammar | Khan Academy

618 views / 0 likes - added 6 years ago

Let's explore what verbs are, and what they do! David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/identifying-verbs?utm_source=YT&utm_medium
04:57
Irregular plural nouns | foreign plurals | The parts of speech | Grammar | Khan Academy

642 views / 0 likes - added 6 years ago

You don't need to know how to speak Latin and Greek in order to understand English, but some words in English come from those languages. It's helpful to know how some Greek and Latin words change from singular to plural. Practice this yourself on Khan Aca
02:46 Popular
Introduction to Grammar | Grammar | Khan Academy

970 views / 0 likes - added 6 years ago

Khan Academy Grammarian David Rheinstrom welcomes you to his favorite topic: the study of language, its rules, and its conventions. By understanding English – by speaking it, by writing it, by reading this very sentence – you are a grammarian yourself! Wa
06:04 Popular
5 LIFE HACKS BASED ON SCIENCE

834 views / 2 likes - added 6 years ago

These short, simple life hacks are based on physics. Detangle your headphones, remove sticker residue, check if sunglasses are polarized, cool your car faster, and avoid getting static shock! Check out these Chemistry Life Hacks on ACS Reactions! https://
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03:33 Popular
If Chemical Elements Were People || Fun & Easy Chemistry

1,381 views / 0 likes - added 6 years ago

Chemistry is often considered one of the toughest subjects for a child at school. However, we managed to turn such a hard subject into fun! Subscribe to Bright Side : https://goo.gl/rQTJZz ------------------------------------------------------------------
05:12
How Do Anti-Aging Creams Work?

602 views / 0 likes - added 6 years ago

Subscribe! http://bit.ly/ACSReactions Want a younger, more perfect-looking you? Skin can stay firm and stretchy thanks to protein fibers called collagen and elastin in the tissue beneath the surface. But environmental factors like smoking or ultraviolet r
03:46
Why Superhydrophobic Materials Never Get Wet

597 views / 0 likes - added 6 years ago

For more water-repelling chemistry, check out this great graphic from our friends at C&EN and Compound Interest: http://cen.acs.org/articles/94/i15/Periodic-graphics-Water-repelling-chemistry.html Subscribe! http://bit.ly/ACSReactions Raincoats, car winds
05:53
The Smell of Durian Explained (ft. BrainCraft, Joe Hanson, Physics Girl & PBS Space Time)

540 views / 1 likes - added 6 years ago

Subscribe! http://bit.ly/ACSReactions Durian is known as the king of fruits in Southeast Asia, but it’s also banned from many public spaces due to its powerful odor. This week’s Reactions video explains the unique chemistry behind durian, and catches our
03:48
The Truth About Clothes Moths

551 views / 1 likes - added 6 years ago

If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and the ever requested Simon Whistler whistling packa
13:45
Nickel - Periodic Table of Videos

502 views / 0 likes - added 6 years ago

A new video about Nickel, including an attempt to show off the fiery nature of Raney Nickel. More links and info in full description ↓↓↓ Extra Nickel footage: https://youtu.be/8slzsYJNpbA All 118 elements playlist: http://bit.ly/118elements Support us on
01:31
A peculiar phenomenon covered a Chinese lake with 'snow' in the middle of the summer

686 views / 2 likes - added 6 years ago

A Yuncheng City salt lake in China's Sanxi Province is covered with white foam that looks like snow in the middle of the summer. While scientists don't know for sure what causes all the foam, experts think it's a result of a unique mixture of algae and pl
04:13
World's Smallest Smoke Rings /// Homemade Science with Bruce Yeany

545 views / 1 likes - added 6 years ago

How small can smoke rings get? In this video we'll take a look. Whether large or small, the movement of vortex rings can be a fascinating when made visible. For a better view of the ring structure, I would like to suggest to anyone studying smoke rings, t
07:02
World's Saltiest Water - Periodic Table of Videos

590 views / 0 likes - added 6 years ago

A recently created lake/pond in Ethiopia contains the world's most saline water body. More links and info in full description ↓↓↓ This video features Professor Sir Martyn Poliakoff. PAPER: Chemical Analysis of Gaet’ale, a Hypersaline Pond in Danakil Depre
05:50
Blasting the middle from a coin - Periodic Table of Videos

510 views / 0 likes - added 6 years ago

A phosphorus explosion blows the centre from a £1 coin. More links and info in full description ↓↓↓ The £5 bank note in acid: https://youtu.be/wMwThGTYT2o More slow motion experiments: http://bit.ly/chemslomo White Phosphorus: https://youtu.be/U6_-EUcswSc
05:48
Primitive Technology: Sandals

635 views / 0 likes - added 6 years ago

I made a pair of sandals from loya cane. Walking bare footed in the bush generally doesn't cause problems for my feet. But when repetitively carrying loads of various materials the soles of the feet become cracked and split. So I made some basic footwear
01:25
How Can A Hydraulic Press And Seashells Be Used To Inflate Balloons?

491 views / 0 likes - added 6 years ago

#Outrageous_Acts | Wednesdays at 9/8c If you happen to own a hydraulic press you could try this chemistry trick - crushing shells, mixing them with vinegar to release their captured carbon dioxide. Full Episodes Streaming FREE on Science GO: https://www.s
03:56
Chemistry Life Hacks: Food Edition

680 views / 0 likes - added 6 years ago

Subscribe! http://bit.ly/ACSReactions Reactions is back with another round of chemistry life hacks. Our latest episode brings chemistry to the kitchen, and features science-backed tips to cook rice with fewer calories, get extra juicy chicken (when you do
04:51
Why Olive Oil is Awesome

524 views / 1 likes - added 6 years ago

Subscribe! http://bit.ly/ACSReactions Whether you sop it up with bread or use it to boost your cooking, olive oil is awesome. But a lot of chemistry goes on in that bottle that can make or break a product. Take the “extra virgin” standard: Chemistry tells
04:06 Popular
Why is the Statue of Liberty Green?

1,506 views / 4 likes - added 6 years ago

Check out BrainCraft here: https://www.youtube.com/braincraft The Statue of Liberty is an iconic blue-green symbol of freedom. But did you know she wasn’t always that color? When France gifted Lady Liberty to the U.S., she was a 305-foot statue with reddi
05:12
Fried Chicken’s Deliciousness, Explained

552 views / 0 likes - added 6 years ago

Subscribe! http://bit.ly/ACSReactions Battered and deep-fried chicken might be one of the most delicious foods ever. But what makes this summer picnic staple so tasty? It all comes down to the chemistry of frying. In the latest Reactions video, learn how
03:55
The weird chemistry threatening priceless paintings — Speaking of Chemistry

477 views / 0 likes - added 6 years ago

Subscribe! http://bit.ly/ACSReactions Did you know that thousands of precious paintings around the world are generating soap beneath their surfaces? Art conservators struggle with microscopic eruptions in masterpieces http://cen.acs.org/articles/94/i21/Ar
02:16
One Town, Four Elements: Ytterby

499 views / 0 likes - added 6 years ago

Yttrium, terbium, erbium and ytterbium were all named after one small town on the Stockholm archipelago. But it could have been different, and there could have been many other names. From a snowy bit of Sweden, and a mine that's a historical landmark, let
09:31 Popular
DIY APPLE TREATS!

716 views / 4 likes - added 6 years ago

Today I made three different DIY Apple inspired treats! I hope you enjoy them. *Order the Nerdy Nummies Cookbook here: http://www.nerdynummiescookbook.com FULL RECIPE: http://www.RosannaPansino.com FOLLOW ME: Website: http://www.RosannaPansino.com Faceboo
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05:16 Popular
Nature's Fireworks

712 views / 1 likes - added 6 years ago

Try CuriosityStream: http://curiositystream.com/smart Want even more illuminating ideas? SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓More info and sources below ↓↓↓ Nearly all life on Earth is ultimately powered by light. But many creatures have learned how
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Actinium 2 - Periodic Table of Videos

526 views / 0 likes - added 6 years ago

A new and improved Actinium video. More links and info in full description ↓↓↓ Support us on Patreon: https://www.patreon.com/periodicvideos More element videos: http://bit.ly/118elements With thanks to the Oak Ridge National Laboratory for the Actinium p
04:18
Introverts vs Extroverts

629 views / 0 likes - added 6 years ago

Which personality trait is better? Get a FREE Audible Trial: http://audible.com/asap Subscribe for more: http://bit.ly/asapsci Created by: Mitchell Moffit and Gregory Brown Written by: Amanda Edward, Rachel Salt, Greg Brown and Mitchell Moffit Illustrated
05:09
How Ingenious Animals Have Engineered Air Conditioning

588 views / 0 likes - added 6 years ago

Thanks to non-profit edX.org for sponsoring this video. Go to http://bit.ly/edXSmart to learn more about Harvard’s Architectural Imagination course or other classes from some of the top universities in the world. ↓↓↓More info and sources below ↓↓↓ Here’s
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02:37
Why Does Wine Make Your Mouth Feel Dry?

528 views / 0 likes - added 6 years ago

Check out our new website! https://www.minuteearth.com/ Thanks to Squarespace for sponsoring this video. http://www.squarespace.com/minuteearth Thanks also to our supporters on https://www.patreon.com/MinuteEarth __________________________________________
12:54 Popular
Making Glass From Sand Using A Microwave (and some other stuff)

943 views / 0 likes - added 7 years ago

I show some of the chemistry behind glass making by making a small sample using the equipment I had on hand. Help me make videos by donating here: https://www.patreon.com/CodysLab
05:04 Popular
The genius of Marie Curie - Shohini Ghose

1,021 views / 7 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/the-genius-of-marie-curie-shohini-ghose Marie Skłodowska Curie’s revolutionary research laid the groundwork for our understanding of physics and chemistry, blazing trails in oncology, technology, medicine, and n
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10 Super Useful Life Secrets You NEED To Know

472 views / 0 likes - added 7 years ago

SUBSCRIBE!: http://bit.ly/1G97GmA SHARE THIS VIDEO: https://youtu.be/fyL1eYkuOuw I’ve learned some cool things in my 32 years on this planet, some of weird, some of it strange, most of it totally out there… but a lot of it is really useful! Today I wanted
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The Chemistry of Heavy Water, Argon & Flamingos – Monthly Mailbag #6

681 views / 0 likes - added 7 years ago

Can you drink a whole glass of heavy water? What is Argon used for? Do flamingos have red and blue pigment in their feathers? Jon answers questions from the comments. Subscribe for weekly science videos: http://bit.ly/RiSubscRibe Watch the original films!
10:12 Popular
How to FREEZE LIGHT and STOP TIME Using Liquid Nitrogen! (INCREDIBLE SCIENCE EXPERIMENT!) + Giveaway

1,235 views / 3 likes - added 7 years ago

This incredible science and chemistry demonstration will amaze you! I stopped time and froze light using liquid nitrogen! I'll show you how-to do this cool homemade science experiment! It was amazing I just wanted to see what would happen if you put glow
06:53
Astatine (new) - Periodic Table of Videos

461 views / 0 likes - added 7 years ago

Here's a new video about Astatine - but don't expect to see a sample of it! More links and info in full description ↓↓↓ Support us on Patreon: https://www.patreon.com/periodicvideos More element videos: http://bit.ly/118elements Featuring Professor Sir Ma
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Why is Multitasking So Hard? Psychology for Kids – ExpeRimental #25

463 views / 0 likes - added 7 years ago

Learn how different parts of your brain deal with different tasks, test your multitasking skills, and explore how some activities 'interfere' with each other. Tell us what you think, and you could win £100: https://www.surveymonkey.co.uk/r/ZGHPJ7H Downloa
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Corals can still grow their ‘bones’ in acid waters

452 views / 0 likes - added 7 years ago

New finding reveals how corals build their skeletons. Learn more: http://scim.ag/2rZhNh1 Read the research ($): http://scim.ag/2qGeCqt
05:30 Popular
Meet The Frog That Barfs Up Its Babies

771 views / 2 likes - added 7 years ago

Try 23andMe at https://23andme.com/gross These extinct frogs used to barf up their babies—and now scientists are trying to bring them back from the dead. Happy Mother’s Day! Subscribe! http://bit.ly/1FkxVLb ‖ Twitter! https://twitter.com/gross_science ‖ T
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Drawing for Beginners | Illustration Workshop

642 views / 0 likes - added 7 years ago

Come visit our official website at https://www.cartooning4kids.com/courses and download your FREE C4K Academy of Art Membership Certificate. We hope you enjoyed this extended sketch drawing workshop for beginners. If you would like more drawing workshops
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Your Brain Changes All the Time, but Being a Mom Changes It Forever

591 views / 1 likes - added 7 years ago

Mother's bodies go through tons of changes before and after giving birth, but so do their brains! What really makes a mom's brain different? How Hard Is It To Get Pregnant? - https://youtu.be/H9ySBfbGkU4 Sign Up For The Seeker Newsletter Here - http://bit
05:25 Popular
What Color Were Dinosaurs... Really?

961 views / 1 likes - added 7 years ago

For $30 off your first week of HelloFresh, go to http://bit.ly/2pZ7yYd. Paleontologists can figure out a lot about what dinosaurs looked like based on their fossils, but color? Not so much. What Color Were Dinosaurs? - https://youtu.be/JxF5GAobHjo Sign Up
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01:31
Why you should never pour grease down the drain

476 views / 0 likes - added 7 years ago

It can be easy to just wash out your pan and whatever grease is left on it right after cooking, but you could be doing real damage to your pipes and the public sewer system when you do. Here's what you need to know. The following is a transcript of the vi
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What Your Earwax Says About You

625 views / 0 likes - added 7 years ago

Your gross earwax can reveal a ton about who you are, where you’ve been, and how stinky you are. Subscribe to Gross Science! http://bit.ly/1FkxVLb ‖ Twitter! https://twitter.com/gross_science ‖ Tumblr! http://grossscience.tumblr.com/ ↓Want more gross info
01:37 Popular
Here's how to find water if you're ever stuck in the desert

1,075 views / 3 likes - added 7 years ago

If you ever find yourself lost in the desert, knowing how to quickly find water is going to be key to for your survival. Here's what you're going to need to know. The following is a transcript of the video: The human body can survive for about 3 days with
07:11
Future Elements - Periodic Table of Videos

618 views / 0 likes - added 7 years ago

Professor Poliakoff discusses the paths to elements 119 and 120. More links and info in full description ↓↓↓ Filmed on the banks of the Volga, in Dubna. Tour the Dubna machine which created six new elements: https://youtu.be/1VaY9N7Alq0 Calcium-48: https:
04:15 Popular
Can Ketchup Clean a Penny? #sciencegoals

852 views / 1 likes - added 7 years ago

Squeaks loves collecting shiny pennies, but sometimes he finds one that's sort of grimy and dull. Lucky for him, Jessi knows a really cool science trick to clean up those tarnished pennies! ---------- Love SciShow Kids and want to help support it? Become
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05:20 Popular
What is entropy? - Jeff Phillips

1,627 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-entropy-jeff-phillips There’s a concept that’s crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air
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03:29
Graphene Could Solve the World's Water Crisis

566 views / 0 likes - added 7 years ago

Turning saltwater into clean drinking water is an expensive, energy-intensive process, but could the wonder material graphene make it more accessible? New Discovery Could Unlock Graphene's Full Potential - https://youtu.be/J0ZMi83oUjk Sign Up For The Seek
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03:20
Radium Was a Miracle Product, Until it Started Killing People

536 views / 0 likes - added 7 years ago

People used to think radium had mystical healing properties, but then things went horribly awry. The Bizarre Story Of The Very First Vaccine - https://youtu.be/fF5-aJ-o0Os Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Learn More: Can Burn
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Since Mass Exists, Can There Be Negative Mass?

431 views / 0 likes - added 7 years ago

Media outlets claim researchers have created negative mass, but what they really created is negative 'effective' mass, which is a little different. Black Holes And Gravitational Waves Might Help Us Find Dark Matter - https://youtu.be/C68b9EGksuI Sign Up F
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Coca Cola Milk Experiment - Cool Science Experiments with Coca Cola by Home Science

1,281 views / 0 likes - added 7 years ago

Coca Cola Milk Experiment - Cool Science Experiments with Coca Cola by Home Science Coca Cola vs Coca Cola Zero: http://youtu.be/OBzvN9FLx4Q The reaction of phosphoric acid (V) to proteins in the milk - they are cut and causes a precipitate The reaction o
10:55 Popular
10 Amazing Science Experiments! Compilation

934 views / 0 likes - added 7 years ago

This video is a compilation of top 10 science experiments you can do at home. 0:00 Fire Tornado 1:29 Smartphone 3D hologram 2:16 Soap propelled boat 2:43 Sugar and sulfuric acid reaction 5:05 No-leak magic bag 5:43 Silver egg 6:14 Coke and bleach reaction
02:50
Why Some Molecules Have Evil Twins

560 views / 0 likes - added 7 years ago

A tiny change in a molecule’s geometry completely changes its effects on the human body. How We Made This Video (Ever & David Talk About Drugs): https://youtu.be/tefxgYP0BVM Thanks also to our supporters on https://www.patreon.com/MinuteEarth ____________
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05:07 Popular
How Do We Tell Temperature?

1,104 views / 0 likes - added 7 years ago

Subscribe! http://bit.ly/ACSReactions We have a lot of confidence that we measure temperature accurately. But how do thermometers in the kitchen or doctor’s office work? Thanks to the laws of thermodynamics, thermometers respond to heat moving from hot to
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05:07 Popular
Earth's Little Garbage People?

731 views / 0 likes - added 7 years ago

Subscribe! http://bit.ly/ACSReactions How do earthworms eat? If you’re enjoying some tasty food today that has at least one ingredient that was farmed somewhere, you probably owe a little thanks to earthworms. How is it that these detritivores – literally
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The Element Creator - Periodic Table of Videos

468 views / 0 likes - added 7 years ago

Professor Yuri Oganessian himself shows us where his team created many super heavy elements, including Oganesson. Also featuring Professor Sir Martyn Poliakoff from the University of Nottingham. More Super Heavy Elements videos: http://bit.ly/super_heavy
03:05 Popular
How Cats Became our Friends

821 views / 5 likes - added 7 years ago

Check out how cats became our favorite little murder machines. To learn how dogs and humans got together, watch the companion video over at It's OK To Be Smart: https://youtu.be/tggdERc8E6Y - be sure to subscribe while you're there! Thanks also to our sup
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Science Experiments for kids to do at home! Red Cabbage pH Indicator Colors for Children Activities

1,452 views / 0 likes - added 7 years ago

Science Experiments for kids to do at home with Ryan ToysReview! Red Cabbage pH Indicator Colors that change liquids different colors depending on if it's acid or base. Of course never eat or drink anything and always have an adult to help! Great Video fo
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Could Neural Lace Connect Our Brains To The Internet?

539 views / 0 likes - added 7 years ago

Elon Musk is funding research towards "neural lace," a brain computer interface technology that could allow our brains to compete with AI. Robots Can Now Sense Your Emotions Via Radio Waves - https://youtu.be/fsrpK7Dra08 Sign Up For The Seeker Newsletter
05:47
How tough is the new £5 note?

551 views / 1 likes - added 7 years ago

The UK's new £5 bank note - made of polymer rather than paper - gets the "chemistry treatment". Lots of raw footage: https://youtu.be/KUjh_z1A_RQ Featuring Professor Sir Martyn Poliakoff and Neil Barnes. Gun cotton: https://youtu.be/38w2-NCdtio Gold vault
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Why This “Zero Calorie Sweetener” Isn’t Zero Calories

554 views / 1 likes - added 7 years ago

The final video of this run is from Alex at Technicality Studios! Go subscribe: https://www.youtube.com/user/TechnicalityTime Splenda is a "zero-calorie sweetener", at least in the US. Or at least, that's what it says on the packet. With the help of some
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05:00 Popular
How Much Plastic is in the Ocean?

1,591 views / 5 likes - added 7 years ago

What can you do to make the oceans plastic-free? ↓↓↓Check the resources below ↓↓↓ Ocean plastic pollution is a massive environmental problem. Millions of tons of plastic waste enter the ocean every year, even plastic that goes in the trash can often ends
04:40
A Plastic That Conducts Electricity?

525 views / 1 likes - added 7 years ago

Plastics usually stop electricity in its tracks, but scientists have figured out a way to keep the electrons flowing. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo th
02:33
The Academy Where Butlers Are Born

479 views / 0 likes - added 7 years ago

Learning to serve as a certified butler is both a skill and an art, and the world’s most elite butlers come from one place: The International Butler Academy in Simpelveld, Netherlands. Here, students spend 10 weeks in intensive training, living and workin
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Tallest stack of pancakes: Center Parcs breaks Guinness World Records

801 views / 0 likes - added 7 years ago

London, UK -- Sherwood Forest Center Parcs has broken the Guinness World Record title for the tallest stack of pancakes; the record, which was previously held by Netherlands-based theme park Efteling, was set at the holiday resort's The Pancake House rest
00:40 Popular
Fastest robot to solve a Rubik's cube: Sub1 Reloaded breaks Guinness world record

3,590 views / 0 likes - added 7 years ago

MUNICH, Germany -- A robot known as "Sub1 Reloaded" took just 637 thousandths of a second to analyse the Rubik;s cube and make 21 moves, so that each of the cube's sides showed a single color, thus setting the new world record for being the Fastest robot
00:29 Popular
Largest LEGO ship: DFDS breaks Guinness world record

953 views / 0 likes - added 7 years ago

Copenhagen, Denmark -- DFDS is the largest shipping and Logistics Company in Norther Europe; the employees used 1,015 million LEGO bricks and over 900 hours to build a 40.5 feet (12.35 meters) long, 8.9 feet (2.75 meters) high ship, thus setting the new w
02:29 Popular
World's first 3D-printed pill: Spritam sets world record

856 views / 0 likes - added 7 years ago

Blue Ash, OH, USA -- Developed by Ohio-based pharmaceutical company Aprecia, Spritam levetiracetam is a new drug to control seizures brought on by epilepsy; approved by the US Food and Drug Administration, it employs the company's trademark "ZipDose" tech
01:41
World's First Coffee-Making Refrigerator: GE sets world record

670 views / 1 likes - added 7 years ago

NEW YORK, NY, USA -- The $3,300 GE Café series refrigerator features a Keurig (GMCR) K-Cup brewer that uses the fridge's filtered water to make a single cup of coffee, thus setting the world record for the World's First Coffee-Making Refrigerator, accordi
02:36 Popular
Most expensive cupcake: The Golden Phoenix sets world record

733 views / 1 likes - added 7 years ago

DUBAI, UAE -- The opening event at The Dubai Mall saw the unveiling of a whopping $1,010 (Dh3,700) cupcake which is coated in edible 23 carat gold sheets , setting the world record for the Most expensive cupcake, according to the World Record Academy: htt
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The Numbers in Dice Stacking and Balancing

505 views / 1 likes - added 7 years ago

Behold the 120-sided dice, the d120: http://thedicelab.com/d120.html Of course, the d120 is available on Maths Gear! https://mathsgear.co.uk/products/d120-dice Here is the numerically balanced d20 as well. https://mathsgear.co.uk/products/numerically-bala
03:05
What's the Best Way to Cook Pasta?

526 views / 0 likes - added 7 years ago

Take the PBS Digital survey! https://www.surveymonkey.com/r/pbsds2017 Subscribe! http://bit.ly/ACSReactions Pasta noodles contain only three ingredients: eggs, water and flour. But how can you achieve a tasty result every time? Cooking pasta chemically ch
01:46 Popular
Teen Titans Go! | Chemistry Song | Cartoon Network

1,128 views / 1 likes - added 7 years ago

Cyborg morphs into Dr. Love and uses a smooth song, "Chemistry" to teach the Titans about romance in this clip from episode, "Permanent Record." CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/VgnfHu About Teen T
05:59
Bad typography has ruined more than just the Oscars

618 views / 0 likes - added 7 years ago

How bad design changed award shows, elections, and your medicine cabinet. The 2017 Oscars ended with a pretty shocking mix-up. Announcer Warren Beatty incorrectly named La La Land as the Best Picture winner, and the mistake wasn't revealed until crew memb
03:04
The Chemistry of Redheads

604 views / 1 likes - added 7 years ago

Subscribe! http://bit.ly/ACSReactions St. Paddy's Day is just around the corner, and so instead of celebrating with a glass of green beer, these year we decided to take a closer, chemical look into what makes redheads stand out from the crowd. It might su
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04:13
How to make tomatoes taste awesome again — Speaking of Chemistry

541 views / 0 likes - added 7 years ago

Supermarket tomatoes account for nearly 10% of produce sales in the U.S., but they taste terrible. What can be done to make them great again? Read more at http://cen.acs.org/articles/95/i5/flavor-facelift-supermarket-tomatoes.html?utm_source=YouTube&utm_m
09:08
$500,000 of Calcium - Periodic Table of Videos

565 views / 0 likes - added 7 years ago

The rare isotope Calcium-48 plays a key role in the creation of superheavy elements. But it's not easy to obtain. Filmed at the Joint Institute for Nuclear Research, in Dubna, Russia. Featuring Professor Sir Martyn Poliakoff. See our elements inauguration
02:52 Popular
Why We Dunk Cookies in Milk

1,045 views / 0 likes - added 7 years ago

Like Romeo & Juliet or Batman & Robin, milk & cookies is a pairing that’s just meant to be. But what makes dunking cookies in milk so satisfying? To find the answer, we turned to science. Scientist, chemistry professor and certified dunking expert Matt Ha
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Elements Inauguration - Periodic Table of Videos

595 views / 0 likes - added 7 years ago

The inauguration of Moscovium, Tennessine and Oganesson was held in Moscow on March 2, 2017. Professor Yuri Oganessian was there, and our own Professor Sir Martyn Poliakoff was among the special guests to make speeches. More videos from Russia soon. Music
03:38 Popular
If Your Hands Could Smell, You’d Be an Octopus | Deep Look

931 views / 3 likes - added 7 years ago

Those hundreds of powerful suckers on octopus arms do more than just stick. They actually smell and taste. This contributes to a massive amount of information for the octopus’s brain to process, so the octopus depends on its eight arms for help. To
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07:26
Why China is building islands in the South China Sea

642 views / 0 likes - added 7 years ago

China claims they aren't military bases, but their actions say otherwise. Subscribe to our channel! http://goo.gl/0bsAjO China is building islands in the South China sea and its causing disputes among the other nations in the region; Malaysia, the Philipp
02:30
Why Do Cats Like Catnip?

649 views / 1 likes - added 7 years ago

→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the wate
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The Smelliest Element - Livermorium - Periodic Table of Videos

462 views / 0 likes - added 7 years ago

We met Professor Mark Stoyer at Lawrence Livermore National Laboratory, who played a key role in the discovery and naming of element 116. More with Professor Stoyer soon. More super heavy element videos: http://bit.ly/super_heavy Previous Livermorium: htt
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Brady's Reagent - Periodic Table of Videos

498 views / 0 likes - added 7 years ago

Professor Simon Woodward demonstrates Brady's Reagent - 2,4-Dinitrophenylhydrazine. It has received publicity lately due to concerns about possible explosions of stocks kept in UK schools. Watch all the raw slow motion from this video: https://youtu.be/xh
08:18 Popular
LOONEY TUNES (Looney Toons): Pigs in a Polka (1943) [ULTRA HD 4K Cartoons for Children]

804 views / 1 likes - added 7 years ago

This video streams up to Ultra HD 4k (2160p). Pigs in a Polka is a one-reel animated cartoon short subject in the Merrie Melodies series, produced in Technicolor and released to theaters on February 6, 1943 by Warner Bros. Pictures. It was produced by Leo

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