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
Growing bean plants in CD cases so all the parts can be seen. Have kids write about their finding and act out/ put together a dance describing the life cycle from seed to plant (Movement, writing, science)
Not with concrete, but maybe clay? Get the children involved with these cement stepping stones! All you need is some cereal boxes and quick drying cement. Decorate with glass stones. Excellent idea for the kids to get their garden creativity flowing!