Soils have properties of color and texture and have different capacities to retain water. The surface of the Earth changes. Some changes are due to slow processes such as erosion and weathering. Landforms are the result of a combination of constructive and destructive forces. Destructive forms include erosion and weathering.
Soil consists of weathered rocks and decomposed organic material.
Top of Page Managing Time and Students Classroom management is always a critical factor for any successful lesson, and the Dirtmeister's Science Lab is no exception. In this case, all students can make predictions while one or two volunteers can carry out the activity in front of the room. With the entire class working in teams, the hands-on portion of the challenge will take approximately 30 minutes to complete. Extensions on Erosion Have the class observe an actual field area before and after a rainstorm to see if any erosion has taken place. They should look for places where the water has cut little channels in the soil, or where small piles of sand has been deposited.