Search Results: "1848 california gold rush begins"
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06:13
Rate constant k from halflife example  Knetics  Chemistry  Khan Academy
199 views / 0 likes  addedExample problem showing how to find the rate constant k from the halflife of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chemkinetics/copyofkinetics/v/secondorderreactionwithcalculus?utm_source=YT&u

03:01
Could Poop Power Our Cars?
288 views / 1 likes  addedIs brown the new green? UCLA researchers are using waste matter (yes, including poop) to make a new generation of advanced biofuels. Subscribe! http://bit.ly/1fUWHyY The Climate Change Facts You Need to Know: https://youtu.be/6SRMiMb1xgI The U.S. alone an

07:25
What Happens if You Put a Vacuum Chamber in a Vacuum Chamber? Action Lab Box#1 Unboxing!
134 views / 0 likes  addedGet your Action Lab Box Now! https://www.theactionlab.com/ Follow me on Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat In this video I show you what happens when you put a vacuum chamber in a vacuum chamber

02:39
Operations With Polynomials — Harder Example  Math  New SAT  Khan Academy
352 views / 0 likes  addedWatch Sal work through a harder Operations with polynomials problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp11easier?utm_source=YT&utm_medium=Desc&utm_campaign=N

02:23
Isolating Quantities — Harder Example  Math  New SAT  Khan Academy
289 views / 0 likes  addedWatch Sal work through a harder Isolating quantities problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp13easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT M

02:01
Isolating Quantities — Basic Example  Math  New SAT  Khan Academy
531 views / 0 likes  addedWatch Sal work through a basic Isolating quantities problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp14harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Mi

02:26
Function Notation — Basic Example  Math  New SAT  Khan Academy
375 views / 0 likes  addedWatch Sal work through a basic Function notation problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp13harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse

02:57
Operations With Polynomials — Basic Example  Math  New SAT  Khan Academy
353 views / 0 likes  addedWatch Sal work through a basic Operations with polynomials problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp6harder?utm_source=YT&utm_medium=Desc&utm_campaign=New

01:26
Introduction to verbs  The parts of speech  Grammar  Khan Academy
255 views / 0 likes  addedLet'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/grammarverbs/e/identifyingverbs?utm_source=YT&utm_medium

07:14
Calculating internal energy and work example  Chemistry  Khan Academy
237 views / 0 likes  addedWorked 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/thermodynamicschemistry/internalenergysal/v/specificheatandlatentleatof

02:11
Ratios, Rates, And Proportions — Basic Example  Math  New SAT  Khan Academy
390 views / 0 likes  addedWatch Sal work through a basic Ratios, rates, and proportions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq1harder?utm_source=YT&utm_medium=Desc&utm_campaign=

07:22
Data Collection And Conclusions — Harder Example  Math  New SAT  Khan Academy
324 views / 0 likes  addedWatch Sal work through a harder Data collections and conclusions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths1easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewS

02:56
These 'Resurrection Plants' Spring Back to Life in Seconds  Deep Look
319 views / 0 likes  addedRain falls and within seconds driedup moss that's been virtually dead for decades unfurls in an explosion of green. The microscopic creatures living in the moss come out to feed. Scientists say the genes in these “resurrection plants” might one day prote

03:45
Angles, Arc Lengths, And Trig Functions — Harder Example  Math  New SAT  Khan Academy
332 views / 0 likes  addedWatch Sal work through a harder Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths5easier?utm_source=YT&utm_medium=Desc&utm_campai

03:52
Angles, Arc Lengths, And Trig Functions — Basic Example  Math  New SAT  Khan Academy
309 views / 0 likes  addedWatch Sal work through a basic Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths4harder?utm_source=YT&utm_medium=Desc&utm_campaig

04:34
Radical And Rational Equations — Harder Example  Math  New SAT  Khan Academy
329 views / 0 likes  addedWatch Sal work through a harder Radical and rational equations problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp9easier?utm_source=YT&utm_medium=Desc&utm_campaign

01:22
Radical And Rational Equations — Basic Example  Math  New SAT  Khan Academy
306 views / 0 likes  addedWatch Sal work through a basic Radical and rational equations problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp7harder?utm_source=YT&utm_medium=Desc&utm_campaign=

09:40
Quadratic And Exponential Word Problems — Harder Example  Math  New SAT  Khan Academy
440 views / 0 likes  addedWatch Sal work through a harder Quadratic and exponential word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp2easier?utm_source=YT&utm_medium=Desc&utm_campaign

03:30 Popular
Quadratic And Exponential Word Problems — Basic Example  Math  New SAT  Khan Academy
971 views / 0 likes  addedWatch Sal work through a basic Quadratic and exponential word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp1harder?utm_source=YT&utm_medium=Desc&utm_campaign=

02:22
Nonlinear Equation Graphs — Basic Example  Math  New SAT  Khan Academy
285 views / 0 likes  addedWatch Sal work through a basic Nonlinear equation graphs problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp12harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewS

01:15
Polynomial Factors And Graphs — Harder Example  Math  New SAT  Khan Academy
357 views / 0 likes  addedWatch Sal work through a harder Polynomial factors and graphs problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp12easier?utm_source=YT&utm_medium=Desc&utm_campaign

01:36
Polynomial Factors And Graphs — Basic Example  Math  New SAT  Khan Academy
336 views / 0 likes  addedWatch Sal work through a basic Polynomial factors and graphs problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp11harder?utm_source=YT&utm_medium=Desc&utm_campaign=

02:58
Nonlinear Equation Graphs — Harder Example  Math  New SAT  Khan Academy
353 views / 0 likes  addedWatch Sal work through a harder Nonlinear equation graphs problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp8easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewS

03:13
Interpreting Nonlinear Expressions — Harder Example  Math  New SAT  Khan Academy
325 views / 0 likes  addedWatch Sal work through a harder Interpreting nonlinear expressions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp1easier?utm_source=YT&utm_medium=Desc&utm_camp

02:01
Radicals And Rational Exponents — Basic Example  Math  New SAT  Khan Academy
310 views / 0 likes  addedWatch Sal work through a basic Radicals and rational exponents problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp3harder?utm_source=YT&utm_medium=Desc&utm_campaign

05:55 Popular
Interpreting Nonlinear Expressions — Basic Example  Math  New SAT  Khan Academy
791 views / 1 likes  addedWatch Sal work through a basic Interpreting nonlinear expressions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp10harder?utm_source=YT&utm_medium=Desc&utm_camp

05:39
Solving Quadratic Equations — Harder Example  Math  New SAT  Khan Academy
358 views / 0 likes  addedWatch Sal work through a harder Solving quadratic equations problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp10easier?utm_source=YT&utm_medium=Desc&utm_campaign=N

03:06
Operations With Rational Expressions — Harder Example  Math  New SAT  Khan Academy
301 views / 0 likes  addedWatch Sal work through a harder Operations with rational expressions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp6easier?utm_source=YT&utm_medium=Desc&utm_ca

03:22
Linear And Quadratic Systems — Harder Example  Math  New SAT  Khan Academy
286 views / 0 likes  addedWatch Sal work through a harder Linear and quadratic systems problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp4easier?utm_source=YT&utm_medium=Desc&utm_campaign=N

02:33
Radicals And Rational Exponents — Harder Example  Math  New SAT  Khan Academy
376 views / 0 likes  addedWatch Sal work through a harder Radicals and rational exponents problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp7easier?utm_source=YT&utm_medium=Desc&utm_campaig

04:50
Linear And Quadratic Systems — Basic Example  Math  New SAT  Khan Academy
327 views / 0 likes  addedWatch Sal work through a basic Linear and quadratic systems problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp8harder?utm_source=YT&utm_medium=Desc&utm_campaign=Ne

04:34
This Map Shows Where American Accents Come From
231 views / 0 likes  addedWhen you're traveling to another part of the US than you're originally from, it might be surprising to hear how different the locals sound. For instance, a New Yorker will likely speak the same English language in a completely different accent from a nati

10:25
Is Water Wet? The Final Experimental Proof!
204 views / 0 likes  addedIn this video I join the "is water wet?" debate. I show you with an experiment the true answer to this question. The argument against water being wet is that water makes things wet, but it is not wet. Fire burns, it is not burned. However, instead of argu

06:25
Amazing Experiment Actually Makes Black Fire! The Shadow Fire Experiment
226 views / 2 likes  addedGet your Action Lab Box Now! https://www.theactionlab.com/ Follow me on Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat In this video I show you an amazing experiment where I actually make black fire! I show

03:14
Percents — Basic Example  Math  New SAT  Khan Academy
301 views / 0 likes  addedWatch Sal work through a basic Percents problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq2harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev

03:37
Scatterplots — Harder Example  Math  New SAT  Khan Academy
281 views / 0 likes  addedWatch Sal work through a harder Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq5easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

04:34
Scatterplots — Basic Example  Math  New SAT  Khan Academy
308 views / 0 likes  addedWatch Sal work through a basic Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq4harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

05:03
Units — Harder Example  Math  New SAT  Khan Academy
298 views / 0 likes  addedWatch Sal work through a harder Units problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq7easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previo

03:00
Units — Basic Example  Math  New SAT  Khan Academy
314 views / 0 likes  addedWatch Sal work through a basic Units problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq3harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previou

01:45
Percents — Harder Example  Math  New SAT  Khan Academy
298 views / 0 likes  addedWatch Sal work through a harder Percents problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq3easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre

02:07
How To Travel Around The World in 60 Seconds!
251 views / 0 likes  addedHow to Magic Around the World in a Snap! Evan Era travels around the world in less than a minute for this fun magic video! More than 10 international destinations all over the earth  London England • Paris France • Pisa Italy • Cairo Egypt • Beijing Chin

03:42
Manipulating Quadratic And Exponential Expressions — Basic Example  Math  New SAT  Khan Academy
364 views / 0 likes  addedWatch Sal work through a basic Manipulating quadratic and exponential expressions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp2harder?utm_source=YT&utm_mediu

07:02 Popular
Manipulating Quadratic And Exponential Expressions — Harder Example  Math  New SAT  Khan Academy
974 views / 0 likes  addedWatch Sal work through a harder Manipulating quadratic and exponential expressions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatpassportadvancedmathematics/v/satmathp3easier?utm_source=YT&utm_medi

12:13
Top 30 Weirdest Bikes You Won't Believe Exist
292 views / 1 likes  addedBikes are great, but believe it or not, they come in some very crazy forms you couldn't even think of. From flying bikes, to bikes that can cross rivers, here are the 30 Craziest Bikes You Won’t Believe Exist. Subscribe for more! ► https://goo.gl/pgcoq1 ◄

07:18
Origins Of Algebra  Introduction To Algebra  Algebra I  Khan Academy
365 views / 0 likes  addedWhere did the word "Algebra" and its underlying ideas come from? Watch the next lesson: https://www.khanacademy.org/math/algebra/introductiontoalgebra/overview_hist_alg/v/abstractness?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Kha

04:33
Coordinating conjunctions  The parts of speech  Grammar  Khan Academy
277 views / 0 likes  addedCoordinating 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/meettheconjunction?utm_source=YT&utm_me

03:15
Personal pronouns  The parts of speech  Grammar  Khan Academy
240 views / 0 likes  addedLet's meet the personal pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/thepronoun/e/meetthepersonalpronoun?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Watch the next less

07:50
pH and pKa relationship for buffers  Chemistry  Khan Academy
429 views / 0 likes  addedHow the HendersonHasselbalch 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/acidbaseequilibrium/buffersolutions/v/

03:59
Meet the Comma  Punctuation  Grammar  Khan Academy
255 views / 0 likes  addedDavid 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/thecomma/

04:28
Data Inferences — Harder Example  Math  New SAT  Khan Academy
330 views / 0 likes  addedWatch Sal work through a harder Data inferences problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq9easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed

03:32
Data Inferences — Basic Example  Math  New SAT  Khan Academy
357 views / 0 likes  addedWatch Sal work through a basic Data inferences problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq8harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed t

02:01
Table Data — Harder Example  Math  New SAT  Khan Academy
361 views / 0 likes  addedWatch Sal work through a harder Table data problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq4easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the p

01:22
Table Data — Basic Example  Math  New SAT  Khan Academy
302 views / 0 likes  addedWatch Sal work through a basic Table data problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq7harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pr

12:51
Big Data Problems: Crash Course Statistics #39
24 views / 0 likes  addedThere is a lot of excitement around the field of Big Data, but today we want to take a moment to look at some of the problems it creates. From questions of bias and transparency to privacy and security concerns, there is still a lot to be done to manage t

06:35
What Happens When You Put PopIts In a Vacuum Chamber? Explosions in Space Experiment
152 views / 0 likes  addedGet You Own Experiment Kits Here: https://www.theactionlab.com/ In this video I test if you can actually get fire in a complete vacuum! This is an amazing experiment. I use a very sensitive chemical to show you that fire can exist in a vacuum and it can c

08:04
Putting Helium in Nike Air Max—Are They Lighter?
329 views / 0 likes  addedFollow me on: Facebook: https://www.facebook.com/theactionlabrat Twitter: https://twitter.com/theactionlabman Get your subscription box here: https://www.theactionlab.com In this video I show you what happens when you put helium in Nike Air Max shoes. Can

12:00
Attempting to Make Hydrophobic Sodium—Testing Superhydrophobic Spray on Random Things
215 views / 0 likes  addedGo to https://wix.com/go/actionlab to get started on your website today! Check out my new website at https://www.theactionlabhome.com/ In this video I show you what happens when you spray Neverwet, a superhydrophobic spray on sodium and then put it in wat

03:00
Commas in dialogue  Punctuation  Grammar  Khan Academy
293 views / 0 likes  added“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/thecomma/e/commasindialogue?utm_so

04:47
Who versus whom  The parts of speech  Grammar  Khan Academy
215 views / 0 likes  addedWhen 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/thepronoun/e/relativepronouns?utm_source=YT&utm_medium=Desc&u

05:18
Linear And Exponential Growth — Harder Example  Math  New SAT  Khan Academy
374 views / 0 likes  addedWatch Sal work through a harder Linear and exponential growth problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq8easier?utm_source=YT&utm_medium=Desc&utm_campaign=

02:28
Linear And Exponential Growth — Basic Example  Math  New SAT  Khan Academy
329 views / 0 likes  addedWatch Sal work through a basic Linear and exponential growth problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq6harder?utm_source=YT&utm_medium=Desc&utm_campaign=N

03:27
Key Features Of Graphs — Harder Example  Math  New SAT  Khan Academy
263 views / 0 likes  addedWatch Sal work through a harder Key features of graphs problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq6easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT

04:22
Ratios, Rates, And Proportions — Harder Example  Math  New SAT  Khan Academy
337 views / 0 likes  addedWatch Sal work through a harder Ratios, rates, and proportions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq2easier?utm_source=YT&utm_medium=Desc&utm_campaign

03:22
Key Features Of Graphs — Basic Example  Math  New SAT  Khan Academy
335 views / 0 likes  addedWatch Sal work through a basic Key features of graphs problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq5harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT M

31:06 Popular
World's Largest Gummy Worm Gummy Bear and Snake Candy Challenge Real Messy Food Kids Candy Review
1,091 views / 3 likes  addedWorld's Largest Gummy Worm Gummy Bear and Snake Candy Challenge Real Messy Food Kids Candy Review World's Largest Gummy Bear Gummy Worm and Snake Candy Challenge Real Messy Food Kids Candy Review with Ryan ToysReview and his family! The super giant gummy

04:00
Data Collection And Conclusions — Basic Example  Math  New SAT  Khan Academy
464 views / 0 likes  addedWatch Sal work through a basic Data collections and conclusions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq10harder?utm_source=YT&utm_medium=Desc&utm_campai

05:53
Comparing Q vs K example  Chemical equilibrium  Chemistry  Khan Academy
214 views / 0 likes  addedA 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/acidsandbasestopic/acidsandbases/v/arrheniusdefinitiono

02:55
Emphatic pronouns  The parts of speech  Grammar  Khan Academy
217 views / 0 likes  addedSometimes 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://

03:00
Appositives  Punctuation  Grammar  Khan Academy
229 views / 0 likes  addedDavid 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/thecomma/e/appositives?utm_source=YT&utm_med

05:03
Indefinite Pronouns  The parts of speech  Grammar  Khan Academy
253 views / 0 likes  addedDavid, 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

02:53
The truly irregular verbs  The parts of speech  Grammar  Khan Academy
221 views / 0 likes  addedSome 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/grammarverbs/e/introtoirregular

05:56
Weird Gravitational Anomaly Found in Home Makes Things Roll Uphill
236 views / 0 likes  addedDoes water boil in a vacuum? Find out with your own vacuum chamber! Buy The Action Lab box today: www.TheActionLab.com In this video I show you a weird gravitational anomaly I found in my kitchen that makes things roll uphill instead of down! I talk about

01:51
Punctuating a list  Punctuation  Grammar  Khan Academy
264 views / 0 likes  addedLearn 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/thecomma/e/punctuatinglists?utm_source=YT&utm_medium=

02:16
Center, Spread, And Shape Of Distributions — Harder Example  Math  New SAT  Khan Academy
343 views / 0 likes  addedWatch Sal work through a harder Center, spread, and shape of distributions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatproblemsolvingdataanalysis/v/satmathq10easier?utm_source=YT&utm_medium=Desc

06:01
How to Take the Color Out of Coke—The Colorless Coke Experiment
206 views / 1 likes  addedCheckout Brilliant Here: https://brilliant.org/TheActionLab/ Get your experiment box here https://www.theactionlab.com/ In this video I see if it is possible to take the color out of Coke! I talk about what causes color and then I used two different metho

17:29
How Magic Tricks Are Done
58 views / 0 likes  addedLearn how magic tricks are done and perform the tricks yourself to impress your friends and family! Discover 10 different types of magic tricks and explore the secrets of each to learn new magical skills to make your life easier! How magic tricks work ful

30:09
The Man Who Planted Trees
38 views / 0 likes  addedThe Man Who Planted Trees (French title L'homme qui plantait des arbres), also known as The Story of Elzéard Bouffier, The Most Extraordinary Character I Ever Met, and The Man Who Planted Hope and Reaped Happiness, is an allegorical tale by French

03:12
Correlative conjunctions  The parts of speech  Grammar  Khan Academy
325 views / 0 likes  addedCorrelative 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/correlativeconjuntions?u

05:27
Subordinating conjunctions  The parts of speech  Grammar  Khan Academy
231 views / 0 likes  addedSubordinating 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

07:15
Can You Push Things With Light?
164 views / 0 likes  addedCheckout Brilliant here: https://brilliant.org/theactionlab/ Get your Action Lab Box here: https://www.theactionlab.com/ In this video I test whether or not you can push things with light! I talk about whether or not light has mass. Instead of tying a fly

02:54
Helping verbs  The parts of speech  Grammar  Khan Academy
287 views / 0 likes  addedWe'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

05:27
Converting Directly From Binary To Hexadecimal  PreAlgebra  Khan Academy
285 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/exponentsradicals/Worldofexponents/v/exponentswarmup?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/prealgebra/app

12:11
How Does The Internet Work? An Epic Quest...
119 views / 0 likes  addedSign up to brilliant.org with this link to receive a 20% discount! https://brilliant.org/upandatom/ Check out Sophie (in the U.K)'s channel! https://www.youtube.com/channel/UCQj80avWItNRjkZ41rzHyw This video follows my epic journey to understand the TRUT

08:35
Is it Possible to Take The Color Out of Food? Amazing Colorless Food Experiment!
268 views / 0 likes  addedPerform Your Own Experiments! https://www.theactionlab.com/fireworks In this video I do an experiment to see if you can remove the coloring from food.i talk about color and what causes color to occur. Then I show you how you can remove color by taking the

02:11
Perfect progressive aspect  The parts of speech  Grammar  Khan Academy
215 views / 0 likes  addedWe 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

02:00
What is a pronoun?  The parts of speech  Grammar  Khan Academy
218 views / 0 likes  addedPronouns 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/thepronoun/e/theq

05:10
Reflexive pronouns  The parts of speech  Grammar  Khan Academy
255 views / 0 likes  addedWe 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

03:14
The irregular verb gets taken for a ride  Grammar  Khan Academy
247 views / 0 likes  addedThis 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/grammarverbs

05:34
Subject and object pronouns  The parts of speech  Grammar  Khan Academy
213 views / 0 likes  addedBefore 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

04:53
Modal verbs  The parts of speech  Grammar  Khan Academy
246 views / 0 likes  addedThere'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

03:37
Archerfish Says..."I Spit in Your Face!"  Deep Look
331 views / 1 likes  addedThe archerfish hunts by spitting water at terrestrial targets with weaponlike precision, and can even tell human faces apart. Is this fish smarter than it looks? SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt DEEP LOOK is a ultraHD (4K) short video series

02:45
Progressive Aspect  The parts of speech  Grammar  Khan Academy
246 views / 0 likes  addedIf 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
243 views / 0 likes  addedIf 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

04:39
Grammatical person and pronouns  The parts of speech  Grammar  Khan Academy
232 views / 0 likes  addedThere'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

04:35
Commas and introductory elements  Punctuation  Grammar  Khan Academy
221 views / 0 likes  addedIn 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/thecomma/e/commasan

08:30
Multiplying And Dividing Negative Numbers  PreAlgebra  Khan Academy
370 views / 0 likes  addedMultiplying and dividing negative numbers Watch the next lesson: https://www.khanacademy.org/math/arithmetic/absolutevalue/abs_value_tutorial/v/absolutevalueandnumberlines?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous less

03:08
Where Are the Stars? See How Light Pollution Affects Night Skies  Short Film Showcase
336 views / 0 likes  addedOf the many ways Earth is polluted, light pollution may be the least talked about. It's not an illusion; astronomers measure it from one to nine on the Bortle scale, and earlier this year, one study suggested that light pollution may be causing spring to
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03:00
Inverse Property Of Addition  Arithmetic Properties  PreAlgebra  Khan Academy
398 views / 0 likes  addedThe simple idea that a number plus its negative is 0 Watch the next lesson: https://www.khanacademy.org/math/prealgebra/orderofoperations/arithmetic_properties/v/inversepropertyofmultiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra M

05:18
Pronoun number  The parts of speech  Grammar  Khan Academy
299 views / 0 likes  addedThe 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

04:45
The Ultimate Donut Battle: Cake vs. Yeast
142 views / 0 likes  addedThere’s nothing weirder than biting into a cake donut when you’re expecting the texture of a yeast donut. It’s all fried dough, right? This week on Reactions, we talk about how chemistry makes these two foods so different. Subscribe! http://bit.ly/ACSReac

03:11
The vowelshift irregular verb  The parts of speech  Grammar  Khan Academy
235 views / 0 likes  addedThis 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/grammarverbs

07:52
What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract
412 views / 0 likes  addedFollow me on: Get your subscription box here: https://www.theactionlab.com Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat In this video I show you what a movement through a fourth spatial dimension would lo

09:17
Unit Conversion Within The Metric System  PreAlgebra  Khan Academy
329 views / 0 likes  addedMetric unit conversion Watch the next lesson: https://www.khanacademy.org/math/prealgebra/ratesandratios/metricsystemtutorial/v/convertingwithinthemetricsystem?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? http

09:51
How Far Can a Paper Airplane Fly if You Add a Motor? How Do Planes Really Fly?
371 views / 2 likes  addedGet Your Action Lab Box! https://www.theactionlab.com/fireworks Do you want to make a paper airplanes that can fly forever! How can you make a paper plane that fly far? In this video I show you what happens when you put a motor on a paper airplane! Will i

07:33
Ways to get a buffer solution  Chemistry  Khan Academy
218 views / 0 likes  addedDescribes 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

07:43
Basic Addition  Addition And Subtraction  Arithmetic  Khan Academy
432 views / 1 likes  addedIntroduction to addition. Multiple visual ways to represent addition. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/additionsubtraction/basic_addition/e/addition_1?utm_source=YT&utm_medium=Desc&ut

22:42
Scientists Fact Check Natural Disasters In Movies  Vanity Fair
88 views / 0 likes  addedEnvironmental scientists Morgan Page, Michael Angove and Peter Gleick review the scientific validity of scenes from "San Andres," "2012," "The Day After Tomorrow," "Volcano," "Twister," "Geostorm," "The Core," "Interstellar," "Sharknado," "The Perfect Sto

02:31
Perfect Aspect  The parts of speech  Grammar  Khan Academy
223 views / 0 likes  addedIf 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

02:48
Adding In Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
414 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/binarymultiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/

12:26
Lagrangian Mechanics  A beautiful way to look at the world
79 views / 0 likes  addedSign up to brilliant.org with this link to receive a 20% discount! https://brilliant.org/upandatom/ Lagrangian mechanics and the principle of least action. Kinematics. Hi! I'm Jade. Subscribe to Up and Atom for physics, math and computer science videos! *

01:50
Introduction to verb aspect  The parts of speech  Grammar  Khan Academy
251 views / 0 likes  addedIf 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

03:24
Fluorescence Is Awesome (Here Is How It Works)
399 views / 0 likes  addedSubscribe! http://bit.ly/ACSReactions Check out the NSF's Center for Sustainable Nanotechnology Blog! http://sustainablenano.com/ Have you ever wondered about what makes a fluorescent color stand out so brightly from the rest? Today we’re digging into wh
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07:34
Hexadecimal Number System  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
370 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/decimaltobinary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math

10:00
Introduction To Number Systems And Binary  PreAlgebra  Khan Academy
276 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/hexadecimalnumbersystem?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.

08:53
What is Evolution?
170 views / 0 likes  addedSupport Stated Clearly on Patreon: https://www.patreon.com/statedclearly Evolution is often considered a complex and controversial topic but it's actually a very simple concept to understand. Watch this short animation to see how evolution works. Share it

01:46
Introduction to verb tense  The parts of speech  Grammar  Khan Academy
263 views / 0 likes  addedAn 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/

05:16
The myth of the Sampo an infinite source of fortune and greed  HannaIlona Hrmvaara
159 views / 0 likes  addedDownload a free audiobook version of "The Lord of the Rings: The Fellowship of the Ring" and support TEDEd's nonprofit mission: https://www.audible.com/tededCheck out our full book recommendation: https://shop.ed.ted.com/collections/tededbookrecommen

04:56
Kidnapper Ants Steal Other Ants' Babies  And Brainwash Them  Deep Look
110 views / 0 likes  addedKidnapper ants raid other ant species' colonies, abduct their young and take them back to their nest. When the enslaved babies grow up, the kidnappers trick them into serving their captors hunting, cleaning the nest, even chewing up their food for them.Pl

10:09
7 MAGIC POOL PRANKS FOR SUMMER (underwater challenge)
153 views / 4 likes  addedFun magic pool challenges, pranks and tricks you can do for summer! Funny pranks and magic tricks perfect for the swimming pool; How to win an underwater breath holding challenge every time! What happens when you pour Liquid Nitrogen into a swimming pool?

03:43
Converting From Decimal To Hexadecimal Representation  PreAlgebra  Khan Academy
287 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/binaryaddition?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/p

03:52
Converting From Decimal To Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
379 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/largenumberdecimaltobinary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanaca

04:43
Subject, direct object, and indirect object  Syntax  Khan Academy
207 views / 0 likes  addedA 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

04:35
This Bee Gets Punched by Flowers For Your Ice Cream  Deep Look
124 views / 0 likes  addedAlfalfa leafcutting bees are way better at pollinating alfalfa flowers than honeybees. They dont mind getting thwacked in the face by the springloaded blooms. And that's good, because hungry cows depend on their hard work to make milk.Join our community

07:46
Five Ramadan Iftar Meals Around the World
79 views / 0 likes  added1.6 billion Muslims are celebrating Ramadan around the world. As this holy month comes to a close, families around the world are preparing their last iftar meals to break their daily fasts. Venture into the kitchen of five Muslim women preparing food for

05:04
How Would We Stop a Nuclear Missile?
184 views / 0 likes  addedMost of us are hoping that any nuclear threats are just empty threats, and getting at the facts about ICBMs can be difficult. But what would actually happen if someone launched a nuclear weapon? We're conducting a survey of our viewers! If you have time,

06:17
Solving Percent Problems  Decimals  PreAlgebra  Khan Academy
357 views / 0 likes  addedWe'll use algebra to solve this percent problem. Watch the next lesson: https://www.khanacademy.org/math/prealgebra/decimalsprealg/percentwordprobsprealg/v/solvingpercentproblems2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the

03:33
The Secret to Sriracha Hot Sauces Success
58 views / 0 likes  addedDavid Tran is the man to thank for the Sriracha Hot Chili Sauce you douse your scrambled eggs with every morning. You know the stuff. Red bottle with a green cap and a rooster on the frontplus five languages on the bottlethis simple sauce connects people

03:29
Introduction to irregular verbs  The parts of speech  Grammar  Khan Academy
252 views / 0 likes  addedWords 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

07:05
Is it Possible to Cut Molecules? Breaking Molecules in a Blender Experiment
290 views / 0 likes  addedFollow me on: Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat Get your subscription box here: https://www.theactionlab.com In this video I see if you can break molecules by putting it in the blender. I use t
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07:39
The MindBlowing SelfPouring Chain Fountain—How Does It Actually Work?
186 views / 0 likes  addedGet You Action Lab Box Here! https://www.theactionlab.com/ In this video I show you how the amazing selfsiphoning chain fountain actually works. Then I show you a chain that can actually get sucked down when you drop it on a table! This is an amazing phy

01:53
The funky ed irregular verb  The parts of speech  Grammar  Khan Academy
254 views / 0 likes  addedThese 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

04:49
Why Haven’t Hydrogen Vehicles Taken Over the World Yet?
120 views / 0 likes  addedHydrogen fuel cells are promoted as efficient and carbon free, but what happened to hydrogen cars? Why a Half Degree Rise in Global Temperature Would Be Catastrophic  https://youtu.be/teZk3NLU_7M Read More: Gas guzzlers reborn: Why your next car could ru

4:03:19
THE BIGGEST FUNNY COMPANY KID'S CARTOON COMPILATION (1963) (HD 1080p)
284 views / 0 likes  addedThe Funny Company was an American animated cartoon produced in 1963 and seen in syndication. Ken Snyder and Charles Koren produced 260 sixminutelong episodes (they later would create the cult favorite Roger Ramjet). The Mattel Corporation provided finan

04:07
Why Crickets Just Won't Shut Up  Deep Look
64 views / 0 likes  addedMale crickets play tunes nonstop to woo a mate or keep enemies away. But they're not playing their song with the body part you're thinking. Please join our community on Patreon! https://www.patreon.com/deeplookSUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

06:08
The Most Dangerous Science Experiments—The Vampire Stake Test
171 views / 0 likes  addedGo to http://audible.com/actionlab or text “actionlab” to 500 500 to get one free audiobook and a 30 day free trial! Plus, if you’re an Amazon Prime Member, you can get 3 months of Audible for $4.95/month for the first 3 months  offer e

04:52
Possessive pronouns  The parts of speech  Grammar  Khan Academy
311 views / 0 likes  addedWe 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

03:09
Simplifying Square Roots  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
453 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/radicalradicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.kh

13:21
Basic Multiplication  Multiplication And Division  Arithmetic  Khan Academy
508 views / 1 likes  addedIntroduction to multiplication Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplicationdivision/multiplication_fun/e/multiplication_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Wa

05:52
Will The World Ever Run Out Of Water?
634 views / 4 likes  addedAs the human population continues to explode, resources for fresh water are dwindling. What happens if the world runs out of water? How California's Drought Affects The World ►►►► http://dne.ws/1lom4nc Get Awesome DNews Science Shirts! ►►►► http://dne.ws/
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09:36
Negative Numbers Introduction  Negative Numbers And Absolute Value  PreAlgebra  Khan Academy
335 views / 0 likes  addedMysterious negative numbers! What ARE they? They are numbers less than zero. If you understand the nature of below zero temperatures, you can understand negative numbers. We'll help. Practice this lesson yourself on KhanAcademy.org right now: https://www.

03:26
What Happens When You Put a Hummingbird in a Wind Tunnel?  Deep Look
366 views / 1 likes  addedScientists have used a highspeed camera to film hummingbirds' aerial acrobatics at 1000 frames per second. They can see, frame by frame, how neither wind nor rain stop these tiniest of birds from fueling up. DEEP LOOK: a new ultraHD (4K) short video ser

21:10
How to Slow Aging (and even reverse it)
29 views / 0 likes  addedScientists like Prof Sinclair have evidence of speeding up, slowing, and even reversing aging. Thanks to LastPass for sponsoring this video. Click here to start using LastPass: https://ve42.co/VeLPWhat causes aging? According to Professor David Sinclair,

07:00
Abstractness  Introduction To Algebra  Algebra I  Khan Academy
284 views / 0 likes  addedThe general idea behind the word 'abstract' Watch the next lesson: https://www.khanacademy.org/math/algebra/introductiontoalgebra/overview_hist_alg/v/thebeautyofalgebra?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? h

07:02 Popular
TOYS SURPRISE HUGE BALLOON POP CHALLENGE PARTY Disney Cars Marvel Thomas Train Egg Surprise Toy
1,028 views / 5 likes  addedJoin Ryan ToysReview for toys surprise huge balloon pop challenge party in Ryan's room! We blow up over 100+ balloons of different shapes and size! The winner of this family fun toy challenge will get an egg surprise! Inside the surprise egg was Marvel Av

12:49
Scientific Notation Examples  PreAlgebra  Khan Academy
317 views / 0 likes  addedMore scientific notation examples Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/scientificnotation/e/scientific_notation?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra W

04:53
LOONEY TUNES (Looney Toons): Gas (Private Snafu) (1944) (Remastered) (HD 1080p)
228 views / 0 likes  addedGas is an animated short, directed by Chuck Jones and first released in May, 1944. It features Private Snafu learning the value of a gas mask in warfare. The cartoon was produced by Warner Bros. Cartoons. The script writers for the Snafu cartoons were typ

02:50
Why Do Some People Sneeze In Sunlight?
496 views / 1 likes  addedYou walk outside on a sunny day and BAM! A sneezing fit hits you. But why? Join Cristen as she explains the photic sneeze reflex. Learn more at HowStuffWorks.com: http://entertainment.howstuffworks.com/arts/circusarts/humanblockhead2.htm Share on Facebo
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09:16
Adding/subtracting Negative Numbers  PreAlgebra  Khan Academy
398 views / 0 likes  addedAdding and subtracting negative numbers Watch the next lesson: https://www.khanacademy.org/math/prealgebra/negativesabsolutevalueprealg/multdivnegativesprealg/v/multiplyingpositiveandnegativenumbers?utm_source=YT&utm_medium=Desc&utm_campaign=

05:20
Order Of Operations: PEMDAS  Arithmetic Properties  PreAlgebra  Khan Academy
319 views / 0 likes  addedWork through another challenging order of operations example with only positive numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/orderofoperations/order_of_operations/e/order_of_operations

03:21
Introduction To Perimeter  Measurement  PreAlgebra  Khan Academy
267 views / 0 likes  addedFind perimeter by adding sidelengths of various figures. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/measurement/perimeter/e/perimeter_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Wa

04:57
Irregular plural nouns  foreign plurals  The parts of speech  Grammar  Khan Academy
278 views / 0 likes  addedYou 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

02:55
Animaniacs Theme sightread by Tom Brier, piano
247 views / 0 likes  addedI suddenly realized before leaving my house on Saturday that Tom probably would have a blast playing the Animaniacs theme which I transcribed back in 1995 and finally created a score for earlier this year. So I put the sheet music in front of him that nig

04:00
The SnailSmashing, FishSpearing, EyePopping Mantis Shrimp
350 views / 0 likes  addedThe killer punch of the mantis shrimp is the fastest strike in the animal kingdom, a skill that goes hand in hand with its extraordinary eyesight. They can see an invisible level of reality using polarized light, which could lead to a breakthrough in dete

05:51
Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
387 views / 0 likes  addedIntroduces the concept of equivalent fractions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/equivalentfractionsprealg/e/equivalent_fractions?utm_source=YT&utm_medium=Desc&utm

07:14
Thomas & Friends Take n Play Engine Maker Thomas The Tank Engine Toy Trains For Kids Ryan ToysReview
605 views / 1 likes  addedJoin Ryan ToysReview as he unbox and play with Thomas & Friends TakenPlay Engine Maker! The TakenPlay Train Maker lets you build your own engines and you can mix and match different train parts! This Thomas and Friends playset comes with three engine

03:36
Approximating Irrational Number Exercise Example  PreAlgebra  Khan Academy
304 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/orderofoperations/rationalirrationalnumbers/e/approximatingirrationalnumbers?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex

03:53
Plotting Basic Fractions On The Number Line  Fractions  PreAlgebra  Khan Academy
419 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/understandingfractionsprealg/e/fractions_on_the_number_line_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex

09:50
Adding And Subtracting Fractions  Fractions  PreAlgebra  Khan Academy
498 views / 1 likes  addedHow to add and subtract fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/fractionsunlikedenomprealg/e/adding_fractions?utm_source=YT&utm_medium=Desc&utm_campaign=PreA

03:11
What Is The Black Plague... And Should You Be Worried?
318 views / 0 likes  addedYosemite National Park just shut down two campgrounds due to the plague. Should you be worried? Subscribe! http://bit.ly/1FkxVLb ‖ Twitter! https://twitter.com/gross_science ‖ Tumblr! http://grossscience.tumblr.com/ ↓Want more info?↓ National Park Service

02:07
Percentage Of A Whole Number  Decimals  PreAlgebra  Khan Academy
256 views / 0 likes  addedWe hope you're beginning to see that there's more than one way to skin a cat. In other words, there are several different ways to solve problems involving percentages, decimals, and fractions. Watch as find the percentage of a whole number. Watch the next

04:51
Cube Root Of A Nonperfect Cube  PreAlgebra  Khan Academy
380 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/cuberoottutorial/e/cube_roots?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacadem

01:11
Subtracting Decimals: Example 1  Decimals  PreAlgebra  Khan Academy
340 views / 0 likes  addedSubtracting decimals...up to the hundredths placement. Line up those decimals before you start. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/addingdecimalsprealg/e/subtracting

02:28
Drawing Line Of Reflection  Transformations  Geometry  Khan Academy
388 views / 0 likes  addedDrawing line of reflection Watch the next lesson: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/v/determiningthelineofreflection?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www

05:34
Multiplying Positive And Negative Numbers  PreAlgebra  Khan Academy
327 views / 0 likes  addedLearn some rules of thumb for multiplying positive and negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/absolutevalue/mult_div_negatives/e/multiplying_and_dividing_negative_numbers?

05:03
Thomas And Friends Minis Spooktacular And Ahoy, Mateys Pop Up Playset Toy Trains For Kids
445 views / 1 likes  addedThomas and Friends Minis playset toy trains for kids with Ryan and his family from Ryan ToysReview! We opened Thomas Minis Spooktacular and Ahoy, Mateys Pop Up Playset! We also tried the Minis that glows in the dark! The Pirate Thomas can be open up to a

04:33
Multiplying Negative And Positive Fractions  Fractions  PreAlgebra  Khan Academy
373 views / 0 likes  addedSee examples of multiplying and dividing fractions with negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/multiplyingfractionsprealg/e/multiplying_fractions?utm_

09:08
Thomas And Friends Trackmaster Treasure Chase Set And 5 In 1 Track Builder Toy Trains For Kids
454 views / 0 likes  addedThomas and Friends Trackmaster Treasure Chase Set and 5 in 1 track Builder with Ryan ToysReview! Both Train set for kids from Fisher Price comes with Thomas the Tank Engine! This Thomas the train set was inspired by the movie Sodor's Legend of the Lost Tr

03:33
So ... Sometimes Fireflies Eat Other Fireflies  Deep Look
117 views / 0 likes  addedMost firefly flashes are pure romance, a sexy form of skywriting. But one variety copies the mating signals of others to lure them to their demise. SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt DEEP LOOK: a new ultraHD (4K) short video series created by K

06:29
Multiplying Decimals: Place Value And Reordering  Decimals  PreAlgebra  Khan Academy
406 views / 0 likes  addedWe want you to develop an intuition about how to work with decimals. Understanding how you can rewrite decimals by considering the place value will help you multiply! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/

03:31
Watch These Frustrated Squirrels Go Nuts!  Deep Look
271 views / 2 likes  addedHumans aren’t the only creatures that get frustrated. Squirrels do too. One researcher wants to know, could there be an evolutionary benefit to losing your cool? SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt DEEP LOOK is a ultraHD (4K) short video series

09:43
Exponent Rules Part 1  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
388 views / 0 likes  addedIntroduction to exponent rules Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/exponentproperties/e/exponent_rules?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the

08:55
The Giant Bird That Got Lost in Time
166 views / 1 likes  addedThe California condor is the biggest flying bird in North America, a title that it has held since the Late Pleistocene Epoch. It's just one example of an organism that we share the planet with today that seems lost in time, out of place in our world. Than

02:04
Ratio Word Problem: Boys To Girls  PreAlgebra  Khan Academy
302 views / 0 likes  addedIn this example, we are given a ratio and then asked to apply that ratio to solve a problem. No problem! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/ratesandratios/ratios_and_proportions/e/rat

02:39
Comparing Decimals: Ordering From Least To Greatest  Decimals  PreAlgebra  Khan Academy
379 views / 0 likes  addedThis is a fun example where we reorder decimals from smallest to largest. You're looking for the place value that is the most significant, and then working backwards. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/

03:50
Introduction To Multiplying Decimals  Decimals  PreAlgebra  Khan Academy
393 views / 0 likes  addedMultiplying decimals can be confusing because there's always the question as to where the decimals goes in the answer. We're about to show you so you'll never have to question it again! Practice this lesson yourself on KhanAcademy.org right now: https://w

20:48
Introduction To Scientific Notation  PreAlgebra  Khan Academy
405 views / 0 likes  addedIntroduction to scientific notation. An indepth discussion about why and how scientific notation is used. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/scientificnotation/e/sc

03:38
Math Patterns Example 1  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
338 views / 0 likes  addedPart of our exploration of math is learning to identify patterns among numbers. Can you see the pattern in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/mathpatterns?utm_source=YT&utm_mediu

05:38
Superhero Food Hacks  FOOD HACKS FOR KIDS
604 views / 1 likes  addedCheck out these seriously SUPER superhero food hacks! And find out if Shanynn has a SUPER secret of her own! Let us know in the comments below who your favorite superhero is! ~Tasty Tiaras~ Pie crust dough Knife Ruler Muffin tin Cooking spray Gold edible
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08:13
Prime Numbers  Factors And Multiples  PreAlgebra  Khan Academy
342 views / 0 likes  addedWhat does it mean to be a prime number? Let's progress though some whole numbers and ask ourselves if they meet the criteria. What is the criteria you ask? Watch. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math

03:03
Introduction To Exponents  PreAlgebra  Khan Academy
339 views / 0 likes  addedTaking an exponent is basically the act of repeated multiplication. You know how to multiply, right? If so, understanding exponents is completely within your grasp! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/ma

16:34
Expansion and Consequences: Crash Course European History #5
19 views / 0 likes  addedEuropean exploration had a lot of side effects. When the Old World and the New World began to interact, people, wealth, food, animals, and disease began to flow in both directions. In the New World, countless millions were killed by smallpox, measles, and

05:41
Math Patterns Example 2  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
347 views / 0 likes  addedWe continue to strengthen our skill in identifying patterns. This time we'll use a table to track the pattern. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/mathpatterns?utm_source=YT&utm_medium=Desc&utm

04:49
Sesame Street: A Tribute to Caroll Spinney
134 views / 0 likes  addedAfter five decades as the heart and soul of Big Bird and Oscar the Grouch, Caroll Spinney is stepping down from the roles he has performed on Sesame Street since its 1969 premiere. It’s impossible to entirely separate the man from the characters he so vib

04:00
Finding Factors And Multiples  Factors And Multiples  PreAlgebra  Khan Academy
441 views / 0 likes  addedTo find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math

14:13
Introduction To Ratios  Ratios, Proportions, Units, And Rates  PreAlgebra  Khan Academy
436 views / 0 likes  addedWhat a ratio is. Simple ratio problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/ratesandratios/ratios_and_proportions/e/ratio_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAl

09:45
Simplifying Radicals  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
398 views / 1 likes  addedUsing exponent rules to simplify radicals or square roots Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/radicalradicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm

04:18
Adele  Hello (Cello + Piano Cover)  Brooklyn Duo
454 views / 2 likes  added"Hello" by Adele, arranged and performed live on cello and piano by Brooklyn Duo. LISTEN on Spotify: http://bit.ly/29lnauM Buy our SHEET MUSIC: http://bit.ly/1T1SH3k EXPAND for more info! Additional strings recorded afterward by the incredible D

09:23
Converting Fractions To Decimals  Decimals  PreAlgebra  Khan Academy
416 views / 1 likes  addedHow to express a fraction as a decimal Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/decimaltofractionprealg/e/converting_fractions_to_decimals?utm_source=YT&utm_medium=Desc&u

03:24
The Incredible Sea Life of the Red Sea Coral Reef  BBC Earth
189 views / 0 likes  addedSimon Reeve dives into the Red Sea to get close to its incredible fish and marine wildlife. Subscribe to BBC Earth for more amazing animal videos  http://bit.ly/BBCEarthSub Watch more videos from BBC Earth: Planet Earth http://bit.ly/PlanetEarthPlaylist

04:20
Dividing A Whole Number By A Decimal  Decimals  PreAlgebra  Khan Academy
374 views / 1 likes  addedWhen dividing a whole number by a decimal, you're going to need to change that decimal into a whole number. How? We'll show you. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/divi

04:17
Introduction To Area And Unit Squares  Measurement  PreAlgebra  Khan Academy
282 views / 0 likes  addedCover figures with square units to find their area. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/measurement/areabasics/e/measuringareawithunitsquares?utm_source=YT&utm_medium=Desc&utm_campa

07:14
Negative Exponents  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
394 views / 0 likes  addedHow does a negative exponent affect our answer? Before you assume that the answer must be negative, think again! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/negativeexponents

05:02
Positive And Negative Slope  Algebra I  Khan Academy
333 views / 0 likes  addedPositive and negative slope Watch the next lesson: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/slope/v/similartrianglestoprovethattheslopeisconstantforaline?utm_source=YT&utm_medium=Desc&utm_campaign

15:35
Testing if Sharks Can Smell a Drop of Blood
185 views / 1 likes  addedScientific proof Pixar sits on a throne of lies. Thanks to Bose for their support and for the dopest headphones I've ever worn: https://bose.life/markrober Also, thanks to Discovery for putting my life in danger. #SharkWeek begins July 28 only on Discover

09:29
Dividing Decimals With Hundredths Example 3  Decimals  PreAlgebra  Khan Academy
365 views / 0 likes  addedThe old saying is "practice makes perfect." Let's keep practicing dividing decimals and making our divisor a whole number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/dividingd

09:15
Mixed Numbers And Improper Fractions  Fractions  PreAlgebra  Khan Academy
440 views / 1 likes  addedConverting mixed numbers to improper fractions and improper fractions to mixed numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/mixednumbersprealg/e/converting_mixed_numb

05:42
Understanding Division Of Fractions  Fractions  PreAlgebra  Khan Academy
375 views / 0 likes  addedUsing a number line, we'll explain the rule of "invert and multiply" when dividing two fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/divfractionsfractionsprealg/e/

03:31
Tagging the Largest Shark on Earth #OurBluePlanet  BBC Earth
404 views / 0 likes  addedThe size of a school bus but in many ways a mystery, whale sharks continue to fascinate. Join a team of international scientists at a renowned marine sanctuary in Cabo Pulmo, Mexico and discover how we’re trying to better understand these remarkable creat

01:10
High School Fitness (1962)
33 views / 0 likes  addedUnissued / unused material  dates and locations may be unclear / unknown. American newsreel item. Title reads: "Youth Fitness  La Sierra High Shows The Way" La Sierra, California, United States of America / USA LS La Sierra High School. MS Sign reading

08:21
Twovariable Linear Equations And Their Graphs  Algebra I  Khan Academy
268 views / 0 likes  addedIntroduction to 2variable linear equations and their graphs Watch the next lesson: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/solutionstotwovarlinearequations/v/checkingorderedpairsolutionstoequatio

03:38
If Your Hands Could Smell, You’d Be an Octopus  Deep Look
520 views / 3 likes  addedThose 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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07:54
BIGGEST TOY TRAINS TRACK FOR KIDS Thomas & Friends Trackmaster Accidents will Happen Disney Cars
602 views / 3 likes  addedBiggest toy trains track for kids with Ryan ToysReview! Ryan's family put together many different trains and cars playset from Thomas & Friends Trackmaster, Disney Cars like Lighting McQueen, Walt Disney monorail toy, and Tomica Cars PlaySet! As always wi
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