Make Your Own Cloud
2-liter plastic bottle, 1 cup ice, 1 cup hot water
Kids love looking for shapes and animals in the clouds. Here's a fun way to bring the weather indoors: Cut off the top third of a 2-liter plastic bottle (leave cap on). Turn the top of the bottle upside down, and put 1 cup of ice inside. Then, fill the bottom of the bottle with 1 cup of hot water. Quickly, put the top part of the bottle (cap side down) into the bottom part. Watch your cloud form as vapors from the hot water below rise, then cool when they meet the ice-filled top. Eventually, droplets will form, just like rain from a real cloud. Cool!