A Model of the Water Cycle

The Water Cycle is one of the major topics students are expected to understand in science. This is because water is such an important resource for food production, industry, and daily life. To help understand how the water cycle works, lets make a working model, using some common, household items.

Materials

  • a gallon sized zip lock type plastic bag
  • water
  • a desk lamp or direct sunlight
  • 2 small bowls (3-4 inches across)
  • ice
  • salt

If students will be tasting the water, be sure that the plastic bag is new (not reused) and that the bowls are clean.