• Complete Kit

FOSS Third Edition Water Complete Kit

Grade 3


Water is the most important substance on Earth. Water dominates the surface of our planet, changes the face of the land, and defines life. The Water Module provides students with experiences to explore the properties of water, changes in water, interactions between water and other earth materials, and how humans use water as a natural resource.

Students will:

  • Conduct surface-tension experiments.
  • Observe and explain the interaction between masses of water at different temperatures and masses of water in liquid and solid states.
  • Construct a thermometer to observe that water expands as it warms and contracts as it cools.
  • Investigate the effect of surface area and air temperature on evaporation, and the effect of temperature on condensation.
  • Investigate what happens when water is poured through two earth materials–soil and gravel.
  • Design and construct a waterwheel and use it to lift or pull objects.
  • Use field techniques to compare how well several soils drain.


  • Investigation 1: Water Observations
  • Investigation 2: Hot Water, Cold Water
  • Investigation 3: Water Vapor
  • Investigation 4: Waterworks

A Complete Kit includes:

  • Investigations Guide
  • Teacher Resources
  • 32 Science Resource books
  • Nonconsumable equipment
  • Consumable materials for two class uses

Item Package Quantity: 1