Make it rain in your classroom! Students can duplicate the individual processes of the water cycle (evaporation condensation and precipitation) with this ingenious model. The accompanying set of ten 8 1/2" x 11" full color study cards and companion guide will aid students understanding of the water cycle and enhance awareness of the various states of water. Requires a heat lamp, not included. Size 17" x 12.5" x 5".. Truly a perfect model to demonstrate the water cycle.. This model makes it fun to watch the actual processes of evaporation, condensation, and precipitation.. Extensive teaching materials included. 10+ years. Grade 3+