Activity
Science Buddies

Science Buddies: Dust Busters: How No Plow Farmers Try to Save Our Soil

For Students 3rd - 5th
In this environmental science fair project, students will build models of fields prepared by plow-based and no-till methods, and see which ones are best at retaining soil moisture and preventing surface runoff.
Activity
American Geosciences Institute

American Geosciences Institute: Earth Science Week: What's Down There?

For Students 9th - 10th
Students build a model to learn about the cycle of erosion and deposition by water and wind which deposits layer upon layer of rock, soil, and organic material to the surface.