This Erosion in Different Soils lesson plan also includes:
Fourth graders observe and identify the effects of weathering and geological activities. They take part in an excellent hands-on group activity called "Erosion Race," in which each group tries to simulate erosion of soil in the quickest way possible. The teacher gives each group a sample of soil that has a different composition than the other groups. They use water to see who can move their soil down an incline the fastest.