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28 Cards in this Set
- Front
- Back
What is another name for minor planet?
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Asteroid
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What is a type I comet tail?
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mainly gas that is pushed back from the head by the solar wind
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What is a type II comet tail?
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mainly dust pushed back from the head by the pressure of the light from the sun
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What part of a comet contains the most material?
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nucleus
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The largest minor planet is __________.
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Ceres
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Where is the asteroid belt?
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located between the orbits of Mars and Jupiter
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Broken up comets probably cause _________________.
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meteor showers
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What is a meteorite?
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meteoroids large enough to survive the fall through the atmosphere to reach the ground
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What is a meteroid?
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A particle of rock or dust in space that orbits the sun
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What is a meteor?
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A meteroid that enters the earth's atmosphere and begins to glow
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How often does Halley's comet appear?
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76 years
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What is a meteor also called?
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shooting star
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When can you see meteors the best?
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after midnight
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What are the parts of a comet?
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head, coma, nucleus and tail
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How many minor planets are there?
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almost 100,000 have been discovered
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Which family of minor planets could present a possible collision with the earth?
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Aten family of asteroids
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A comet's tail always points ____ from the sun.
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away
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Why are comets visible?
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They reflect light and also fluoresce because of the absorption of the sun by the gases
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What is a shooting star?
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Meteor
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What is the depression in the ground caused by meteorite?
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crater
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True or False - The minor planets are large enough to hold an atmosphere.
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False
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True or False -A comet can only have one tail.
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False
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True or False - Evolutionists have trouble explaining comets and their sources.
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True
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True or False - Most meteors burn up completely before reaching the earth's surface.
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True
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Meteors that come from random directions are called___.
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Sporadic meteors
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Meteors that appear to come from one location in the sky at specific times are called____
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Shower meteors
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What are the most common meteors made of?
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85-90% stony material
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What is the brightest asteroid?
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4 Vesta
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