Science -- Weather: Fill the cup with water. Put shaving cream on top for a cloud. Explain that when clouds get really heavy with water, it rains! Then put blue food coloring on top of the cloud, and watch it rain. Air and Weather unit
All you need is a bottle of shaving cream and a box of corn starch. Pour about half the box of corn starch in each tub and then just squirted the shaving cream into them. Use the entire bottle between the two tubs. After a bit, it's moldable!