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Comets, Asteroids, and Meteors

Comets, Asteroids, and Meteors. The Solar System’s Other Stuff. Comets. Chunks of ice and dust Orbits are very long, narrow ellipses Means “long haired star” in Greek When near the sun, they vaporize to make a tail. Parts of Comets. Nucleus Made of ice and dust Coma Vaporizing ice Tail

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Comets, Asteroids, and Meteors

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  1. Comets, Asteroids, and Meteors The Solar System’s Other Stuff

  2. Comets Chunks of ice and dust Orbits are very long, narrow ellipses Means “long haired star” in Greek When near the sun, they vaporize to make a tail

  3. Parts of Comets • Nucleus • Made of ice and dust • Coma • Vaporizing ice • Tail • Made of dust blown away by the solar wind

  4. Asteroids Orbit in the asteroid belt between Mars and Jupiter Too small to be called planets More than 10,000 asteroids Never became a planet due to Jupiter’s gravity

  5. Meteors Meteoroid is a chunk of rock or ice in space Usually come from comets or asteroids Becomes a meteor when it hits Earths atmosphere Becomes a meteorite when it hits the Earth’s surface Can be seen because they are burning due to friction

  6. Review Questions • What is a comet made of? • Where are most asteroids found? • What are the main source of meteoroids? • What is the difference between a meteor and a meteorite?

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