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16 Cards in this Set
- Front
- Back
Revolve (orbit) |
The path one object takes around another object in space. |
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Tide |
The rise and fall of the water level of the ocean near the shore- caused by gravitational pull of the moon. |
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Lunar Cycle |
The process of the moon changing shapes as it revolves around the Earth. |
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Solar system |
Made of the sun and all objects that are bound to the sun by gravity. |
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Star |
An object in space that makes its own heat and light. |
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Corona |
makes up most of the sun's atmosphere. |
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Atmosphere |
The pocket of air that surrounds the Earth. |
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Axis |
An imaginary line runing from the North Pole to the South Pole. |
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Rotation |
The spinning of a planet or moon on its axis. |
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Crust |
The solid rock that makes up the outer layer of the Earth. |
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Mantle |
The layer of hot flowing rocks beneath the Earth's crust. |
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Core |
The center of the Earth. |
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Sunspot |
An area of the surface of the sun that appears darker than other areas. |
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Solar Flare |
A large explosion in the sun's atmosphere. |
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Solar Energy |
Energy from the sun. |
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Wind |
Moving air. |