He learned that fire needs Oxygen to burn, first from the blacksmith working the forge at the living history museum, and then from the simple experiment of the candle in a jar.
Also as part of our unit about air, we learned that bubbles need to be made out of something sticky in order to remain even a few seconds. We talked about how bubbles blown in a cup of milk last longer than bubbles blown in water and we made a huge batch of bubble soap to play with.
A tub of bubbles:
3/4 cup liquid dish soap
3/4 cup light corn syrup
4 1/2 cups water
Mix all the ingredients together gently, so as not to cause foam.
We also read the book POP!, which, although directed at slightly younger children, did a good job of explaining how bubbles work.
Great lesson! And it looks like a lot of fun, too!
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