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
You Need to Try These Top 10 Summer Science Experiments
Homemade bath crayons - Buy some glycerin soap at a craft store. Melt it in the microwave, add food coloring, and pour into a mold. I used an ice cube tray. Takes about an hour to cool completely, then pop out of the mold and you have crayons!