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11 Cards in this Set
- Front
- Back
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Mass
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The amount of material that an object contains.
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Asteroid Belt
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The region between Mars and Jupiter where most asteroids orbit the sun.
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Atmosphere
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An envolope of gas surrounding a body in space.
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Asteroid
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a rocky object smaller then a planet that orbits a star.
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Comet
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A ball of ice, rock, frozen gases, and dust that orbits the sun.
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Greenhouse effect
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the warming of the atmosphere because of trapped heat energy from the sun.
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Meteor
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An asteroid that enters the earth's atmosphere.
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Planet
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A large body in space that orbits a star such as the sun.
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Sunspot
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Dark area of the sun's surface that gives off less energy than the rest of the sun.
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Solar System
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a star, such as the sun, and all bodies that revolve around it in space.
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Star
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A glowing ball of hot gas that makes its own energy and light.
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