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Dwarf planet
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kuiper belt
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vocab 12-1

vocab words 12-1-14

QuestionAnswer
Dwarf planet a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.
kuiper belt a region of the solar system beyond the orbit of Neptune, believed to contain many comets, asteroids, and other small bodies made largely of ice.
kuiper belt object any of many minor planets in the Kuiper belt outside the orbit of Neptune at the edge of the solar system
comet a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
Oort cloud a hypothetical huge collection of comets orbiting the sun far beyond the orbit of Pluto; perturbations (as by other stars) can upset a comet's orbit and may send it tumbling toward the sun
asteroid a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly
meteoroid a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
meteor a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
meteorite a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock, while the remainder consist wholly or partly of iron and nickel.
Created by: Tianalew7
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