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Fair Hill Nature Center's Outdoor School
Grade 4 "Dirt", Land and Water - STC Concepts 1. Water has an important role in shaping the land. 2. Soil is a composite of weathered materials and organic matter at the earth's surface. Soil components include sand, silt, clay, gravel, and humus. Each soil component has unique properties. 3. The wearing away and moving of soil and rock is erosion; the settling of eroded materials is deposition. 4. Humans can effect erosion and deposition in various ways, including clearing the land, planting vegetation, and building dams. 5. Hills, rocks, plants, and dams may change the direction and flow of water. 6. Landforms such as canyons, and deltas result from the action of flowing water. Students will be introduced to the concept of soil as a natural resource. They will rotate through a series of stations demonstrating the biological, chemical and physical means by which soil is formed. Students will hike to observe landforms and various practices for the prevention of soil erosion. Groups will conduct soil compaction tests in the forest and picnic area and compare results. They will conduct a hunt through a forest soil sample to observe life within the topsoil layer. |
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630 Tawes Drive If
you have questions, comments or
suggestions,hendrick@udel.edu |
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