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Earth's changes
| Term | Definition |
|---|---|
| Weathering | The slow process that breaks materials into smaller pieces |
| Erosion | The process of wind or water moving small pieces of rock, soil, and sand from one place to another. |
| Deposition | The dropping off of eroded soil, sand, and bits of rock |
| Sand Dune | A hill of sand formed by wind often located near an ocean |
| Canyon | A deep valley surrounded by steep sides |
| Delta | a triangle of sand and soil deposited at the mouth of where two bodies of water meet |
| Sediments | weathered particles of soil or rock that have settled to the bottom of a body of water |
| Glacier | a large sheet of ice that moves slowly across the land |
| Sedimentary Rock | A type of rock formed when layers of sediment are pressed together and harden over time. |
| Cementation | The process through which loose sediment is stuck together and hardened by minerals. |
| Compaction | The process through which layers of sediment are squeezed together by the weight of sediment above, removing water or air from spaces between particles of sediment. |
| Fossil Fuel | A source of energy made from the remain of ancient, once living things. |
| Natural Gas | A mixture of gases found in Earth’s crust |
| Petroleum | Thick oil found by drilling beneath Earth’s surface |
| Oil | A liquid found beneath Earth’s surface used as fuel |
| Coal | A hard black or brown substance that is found in the Earth and is burned as fuel. |
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