Erosion, transportation and deposition
After rock is weathered into small pieces, water and wind can move it. This happens in three steps: erosion (the pieces are picked up), transportation (they are carried along) and deposition (they are dropped in a new place).
Moving the pieces
Q1. Put the three steps in the correct order (1, 2, 3) and describe each one.
| Order (1-3) | Step | What happens |
|---|---|---|
| Deposition | ||
| Erosion | ||
| Transportation |
Q2. In your tray model, what did you use to transport the sand? What happened to the sand when the water or wind slowed down?
Q3. Explain the difference between weathering and erosion. Give one example of each.
Q4. Topsoil is the top layer of soil where plants grow. Explain why farmers worry when wind or water erodes their topsoil. What could happen to our food?
Q5. Suggest one way people could slow down the erosion of soil on a bare hillside.