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EARTH
Weathering, Erosion, Deposition and Rock Cycle
| Question | Answer |
|---|---|
| The picking up and removal of rock particles? | Erosion |
| Rocks tumbling against each other in a river making smooth edges would be an example of | abrasion |
| Water freezing in the crack of a rock and expands is called ________weathering. | free-thaw weathering |
| What are some examples of human activities that increase weathering and erosion? | Overcutting down vegetation/trees, letting animals overgrazing an area of land, polluting the land. |
| What are some techniques you can use if you are putting crops on a hill to prevent water erosion? | Terraces, contour farming, and planting vegetation on land anywhere possible, and leaving crop residue on the soil. |
| Which layer of soil is the most fertile? | Topsoil |
| This carries away weathered rock. ________can be seen that carved out the Grand Canyon | water erosion from the river that runs through the canyon |
| __________breaks down Earth's crust over time into sediment. | weathering |
| Buildup of sediment is called | deposition |
| Would mining be a factor of the land weathering or eroding? | yes |
| What helps when soil is constantly eroded away by wind? | windbreak |
| The Dust Bowl was mainly caused by | wind erosion and a drought-Also, overusing the land |
| Sand carried by wind carving out rocks over time would be an example of | abrasion |
| Drought can be a factor in erosion. True or False? | True |
| Erosion is a building up process. T or F | False |
| Three types of rocks | Igneous, Sedimentary, Metamorphic |
| Pumice is what type of rock? | Igneous |
| Limestone is what type of rock? | Sedimentary |
| Obsidian is what type of rock? | Igneous |
| Magma makes what type of rock? | Igneous |
| Heat and pressure makes what type of rock? | Metamorphic |
| Layers pressed together over time make what type of rock? | Sedimentary |
| Granite is what type of rock? | Igneous |
| Valleys are usually formed by what type of erosion? | Water erosion |