This particular worksheet is an explanation of three different experiments that could be done during a unit on water cycles. The first experiment uses cups and water to measure evaporation in the course of four days. The second worksheet uses matches and a 2-liter bottle to create a cloud! The last experiment uses glass and ice to demonstrate precipitation.
Please look for the Evaporation and Condensation wk as well as the Water Cycle Test that would go great with a water cycle unit.