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| Question | Answer |
| What is weathering? | Weathering is the physical and chemical processes that break rocks down into smaller pieces. |
| What is physical weathering? | Breakdown of rocks by physical process. |
| What can weathering happen because of? | Weathering can happen because of: -temperature change -the action of water and ice -crystallisation of salts -living plants -wind |
| What happens to solids when heated and cooled? | When solids are heated they expand, and contract when they are cooled. |
| What are glaciers? | Glaciers are like frozen rivers that move along the valleys very slowly. |
| What does water in the soil often contain? | Water in the soil often contains dissolved chemicals called salt-sodium chloride. |
| What is chemical weathering? | Water or chemicals in the water and air reacting and breaking down rocks. |
| What does the air contain? | Air contains oxygen and carbon dioxide, and both can react with certain types of rocks. |
| What is erosion? | Removal of weathered rock particles away from the site of the weathering. |
| What are agents of erosion? | Agents of erosion are factors that cause erosion-water, wind and ice. |
| Where is the most common place erosion takes place. | The most common place erosion takes place is in mountains or hills. |
| What is sedimentation? | Sedimentation is the process of water or wind depositing eroded rock particles. |
| When does sedimentation occur? | Sedimentation occurs where the moving water, wind or ice that is carrying the particles slow down. |
| What is texture? | Texture is the size of the particles that make up soil. |
| What are the main particles in soil classified into? | The main particles in soil are classified into clay, silt and sand. |
| What is structure? | Structure is how well the soil particles join up to form lumps. |
| What are pore spaces? | Pore spaces are the amount of space in the soil that could be filled with air or water. |
| What is the water-holding capacity? | The water-holding capacity is the measure of how much water a particular amount of soil can hold. |
| What is permeability? | Permeability is a measure of how fast water enters soil. |
| What is consistency? | Consistency is the tendency of soil particles to stick together. |
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