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| a descrption of the solar system in which all of the planets revolve around the sun. |
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| a descrption of the solar system in which all of the planets revolve around the sun. |
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| an elongated circle; or oval; the shape of the planets' orbit. |
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| the tendancy of a moving object to continue in a straight line or a stationary object to remain in place. |
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| the process by which hydrogen atoms join together to form helium, releasing energy. |
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| the central part of the sun, where nuclear fusion occurs. |
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| The inner layer of the sun's atmosphere. |
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| The middle layer of the sun's atmosphere. |
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| The outer layer of the sun's atmosphere. |
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| a sream of electrically charged particles produced by the sun's corona. |
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| areas of gas on the sun that are cooler than gases around them. |
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| A loop of gas that protrudes from the surface, linking parts of sunspot regions. |
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| an explosion of hydrogen gas from the sun's surface that occurs when loops in sunspot regions suddenly connect. |
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| The name given to the four inner planets; Mercury, Venus, Earth, and Mars. |
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| The spinning motion of a planet from east to west oppisite the direction of rotations of most planets and their moons. |
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| the trapping of heat by a planet's atmosphere. |
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| the name given to the firt four outer planets; Jupiter, Saturn, Uranus, and Neptune. |
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| a ball of ice and dust whose orbit is a long, narrow eclipse. |
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| objects revolving around the sun that are to small and to numerous to be considered planets. |
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| the region of the solar system between the orbits of Mars and Jupiter, where many asteroids. |
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| a chunck of rock or dust in space. |
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| a meteoroid that has hit earth's surface |
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| a streak of light in the sky produced by the burning of a meteoroid in earth's atmosphere. |
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| a descrption of the solar system in which all of the planets revolve around the earth. |
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