Why Does Bread Have Holes In It? | The Science of Cooking | SciShow Kids

Mister Brown and Squeaks are making bread, and they're going to need a tiny little helper to get the job done: a fungus called yeast!
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SOURCES:
Disciplinary Core Idea:
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 Expectation:
2-PS1-4. Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.
Sources:
www.scientific...
phys.org/news/...
book.bionumbers...
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