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Week Eighteen 01/20
| Term | Definition |
|---|---|
| Rotation/Rotate | To spin or make a circular motion on its own axis |
| Revolution/Revolve | To go all the way around something |
| Axis | An imaginary line which a body rotates on |
| Equator | An imaginary line dividing the Northern and Southern hemisphere |
| Tilt | A sloping position |
| Day/Night Cycle | Caused by the Earth's rotation on its axis every 24 hours |
| Seasons | Caused by the Earth's revolution around the Sun and it's tilt |
| Tides | Caused by the gravitational pull of the moon on the Earth |
| Sequence | The order or the following of one thing after another |
| Appearance | The way something looks |
| Weathering | The Wearing away of sediments by wind, water, and ice. |
| Erosion | The moving or carrying away of sediments to a new location. |
| Deposition | The dropping of sediments at a new location. |
| Compaction | The pressure of pressing together sediments. |
| Cementation | When sediments that are pressed together get hot and the minerals melt causing it to stick together like cement or glue |
| Delta | Created by the deposition of sediment. Streams and rivers deposit sediments at the mouth of rivers. Triangular shaped. |
| Canyon | A huge valley created by the moving water of a river. Takes millions of years to form. |
| Sand Dune | A mound of sand deposited by the wind. |
| U-shaped Valley | Created by glaciers |
| V-shaped Valley | Made by moving water |