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Revision of Keywords
Keywords to do with the Earth, erosion, rivers and the solar system
Term | Definition |
---|---|
Denudation | When the weather wears down the Earth's crust. |
Weathering | When the atmosphere down something over a long period of time. |
Mechanical weathering | The process of breaking big rocks into little ones. |
Chemical weathering | When a chemical reaction causes something to disintegrate. |
Scree | Lots of small loose stones that cover a mountain. |
Carbonation | When pressure is applied to an object containing carbon dioxide. |
Gradient | An inclined part of a rock. |
Flood Plains | The flat area of which the river overflows and floods. |
Velocity | Speed of a river |
Deposition | When a river moves things from one place to another. |
Mouth | The part of a river which leads to the sea. |
Estuary | The part of the river that is tidal. |
Basin | The area which the river drains. |
Watershed | The high ground surrounding the valley which the river drains. |
Orbit | The route something travels in, usually in a rotation. |
Friction | When two objects collide and rub together. |
Convection current | The transfer of heat by mass movement of heated air into cooler air. |
Tectonic plates | The plates that make up the surface of the Earth. |
Inner core | The innermost part of the core. |
Outer core | The second last layer of the Earth. |
Crust | The outer layer of the Earth. |
Mantle | The part of the Earth between the crust and the core. |
Magma | Molten material beneath or within the crust. |
Lava | The molten rock that flows from a volcano. |
Earthquake | When two plates collide and cause a series of violent vibrations. |
Solar System | The sun together with all the planets that revolve around it. |