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Why Does Cooking Eggs Make Them Hard?

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Channel: SciShow Kids
Categories: Cooking   |   Fine Arts   |   Chemistry   |   Science  
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Description

Jessi and Squeaks grab a snack and learn all about why boiling eggs makes them hard!
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Love SciShow Kids and want to help support it? Become a Patron on Patreon:
https://www.patreon.com/scishow

If you have a question for Jessi, Squeaks, and Mister Brown you can write to them here: https://forms.gle/SENBjH9szoLGfrRC9
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Second Grade Next Generation Science Standards

Disciplinary Core Ideas:

PS1.A: Structure and Properties of Matter - Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature (2-PS1-1).

PS1.B: Chemical Reactions - Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible, and sometimes they are not (2-PS1-4).

Performance Expectations:

2-PS1-1. Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.

2-PS1-4. Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.

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SOURCES:
https://www.nature.com/scitable/blog/scibytes/why_do_eggs_hardboil/
https://www.exploratorium.edu/cooking/eggs/eggscience.html
https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cbic.201402427
https://link.springer.com/article/10.1007/s11483-010-9200-1
https://www.livescience.com/28575-science-of-cooking-perfect-egg.html

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