I spent an hour yesterday doing science with the girls at TXT2012 camp at Dakota County Technical College yesterday, where kids get to explore Technology, Science, Transportation, Health, Design, Technical/Industrial, and Business fields with hands-on projects. I showed them how to make a marshmallow slingshots (and talked about conservation of energy,) we talked about the fact that there are fun, safe experiments to do with kids you might be babysitting (with mom and dad’s permission, of course,) and then we played with red cabbage juice, and talked a little about pigments, flavenoids and anthocyanins. Finally, we did a hands-on chemical reaction using the cabbage juice, vinegar and baking soda.
Here are the experiments I demonstrated and mentioned: Marshmallow Slingshots, “Magic Potion” (Red Cabbage Juice chemical reaction,) Homemade Litumus Paper, CO2 breath test with red cabbage juice
and here are some fun, safe experiments for babysitters that can be done (under supervision) with young children: Tie-Dye Milk, Cornstarch Goo. If you have an iPhone or iPod Touch, these experiments are on the free (and Premium) version of KidScience app, so you can have them with you all the time.