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Landforms - lesson 1
natural processes
| Question | Answer |
|---|---|
| rocks being broken down into soil and sand | weathering |
| the process of soil, sand, and tiny pieces of rock being moved by wind, water or glaciers | erosion |
| a large hole formed when the ground caves in because of weak or dissolving rocks | sinkhole |
| the earth's physical features | landforms |
| the process of soil and sand being dropped off in a new place | deposition |
| rock and soil that fall due to gravity | mass movement |
| new land where sediment is dropped at the mouth of a river | delta |
| thick sheet of ice that causes erosion as it slides down | glacier |
| a very steep landform that waves can change over time | cliff |
| tiny pieces of broken-down rock | sediment |
| a process that changes the minerals that make up rocks | chemical weathering |
| a process that chnages rocks without changing the minerals that are made of | physical weathering |
| the breaking of rock into smaller pieces by gravity, ice, plant roots, or other factors | mechanical weathering |
| an event that occurs when gravity quickly pulls rocks and dirt downhill | landslide |
| an opening in Earth's crust through which steam, lava, and ashes erupt | volcano |
| the shaking of Earth's surface caused by the release of energy along a fault | earthquake |
| a great flow of water over an area that is usually dry land | flood |