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6 Cards in this Set
- Front
- Back
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Distinguish between meteoroids, meteors, and meteorites.
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Meteoroids are particles orbiting the sun. Meteors are meteoroids that enter the earth's atmosphre and glow. Meteorites are meteoroids that survive the fall through the atmosphere and impact the earth.
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Why is it easier to see meteors after midnight?
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After midnight the observer is on the leading side of the earth as it goes through its orbit; so the earth is approaching the meteoroids moving away from it.
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When are the two best times during the year to see meteor showers?
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August 12 and November 17.
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List the three types of meteorites.
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Stoney meteorites, iron meteorites, and stony-iron meteorites.
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When studying meteorites, what problem comes up concerning the age of the earth?
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If the fossil layers took hundreds of millions of years to form, you would expect to find numerous meteorites in the fossil layers; however, relatively few have been found.
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What do most scientists think the Tunguska Event was?
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A comet or a piece of a comet hitting the earth's atmosphere.
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