Joshua and I have had the best time with the science project kit that he got for his birthday from his Uncle Doug and Aunt Emily! We've done several of the projects so far. They all revolve around learning about acids and bases. In this project, Joshua was able to make a volcano (out of baking soda, flour, and red cabbage powder) and then pour a citric acid mixture on top of it to make it bubble and froth. He played with this until everything finally neutralized and he couldn't get a reaction anymore. :)
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