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My (almost) 10yo is asking for science projects that explode.


helena
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When my oldest was smaller he did one with some old film canisters and alka-seltzer tablets. He put part of tablets and water in a canister and sealed it tight then timed how long it took it top blow and charted how high it went. It was a lot of fun.

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We've done so far:

 

- homemade bottle rockets (we have an air compressor)

 

- dry ice experiments (put it in water, press a spoon to it, let it dance on a smooth surface. Great for a lesson in sublimation)

 

- the classic baking-soda-and-vinegar "volcano"

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Science Wiz chemistry kits, Chem+ specifically.

 

Mentos and Coke-- have him test Coke vs Diet Coke, number of mentos, temperature of Coke, etc.

 

Adventures With Atoms And Molecules (book). Good stuff.

 

Huge trashcan, a few cups of baking soda, lots of vinegar. Bonus-- you end up with a clean trash can.

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