We did the chemical popgun experiment. You have to mix an acid and a carbonate together in a container, then put the lid on and see if it pops! Vinegar and baking soda popped the best. Lemon juice and baking soda popped too. The diet coke did nothing which was amazing as last week anything we put with diet coke made it fizz. We have some more investigating to do with diet coke!
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