bubble painting: have the kiddos blow until they have a huge pile of bubbles, then press the paper gently into the bubbles, allowing them to pop on the paper (repeat the process with as many colors as the kids want) - the end result is amazing!
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
Get white or cream colored long stem roses (carnations work too). Cut the stem according to the picture. Get 4 glasses of food color dyed water and put one piece of stem in each color. Allow the flower to soak up the different colors.