Science: More (chemical) Reactions

Weeks 28 and 29 of school we learned about more (chemical) reactions using Layers of Learning, year 3 unit 17.

We played with pH papers. Fritz especially had a good time with that.
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We watched tons of YouTube videos (including one of Cameron doing the Diet Coke and Mentos experiment almost a decade ago).
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We put glow sticks in hot and cold water and then let them sit for a while. The one in cold water didn’t glow as brightly, but the one in hot water didn’t glow as long.
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We put Alka Seltzer in water and watched how the temperature changed. It went from 72* to 64* in less than a minute.
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We mixed baking soda and vinegar and timed how long the reaction continued while stirring and while not stirring. It took 8 minutes for the reaction to end when we let it sit, but less than a minute when we stirred it.
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We did the Diet Coke and Mentos experiment. The fountain it made was impressive.
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We mixed diced potato and diced liver with hydrogen peroxide to see which contained more catalase. The result: Definitely the liver!
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