Materials: ice cubes, several zip-close plastic bags
- Make ice cubes and put one or two into each bag. Work with kids to decide a few different places to put the bags. For instance, you might place one on a sunny windowsill, one outside, one on a shelf, and one in the refrigerator.
- Have kids predict which bags of ice will melt faster and which will melt slower. Why do they think so?
- Keep tabs on all your bags of ice. As each bag finishes melting, write on chart paper the place you kept it.
- You should have a list that shows the order in which the bags melted, from first to last. Kids will see that the list goes from the warmest place to the coldest place. That’s because ice melts faster the warmer it gets!