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Comets, Asteroids, and Meteors

Across
A space rock that does not completely burn up in Earth's atmosphere and reaches Earth's surface
A chunk of frozen gas, dust, rock and ice that travels in a very long elliptical orbit around the sun. They often have long visible tails that point away from the sun
A region between the orbits of Mars and Jupiter that contains most of the asteroids in the solar system
Large pieces of rock and metal that orbit the sun
Small pieces of rock that are floating through space. Some may be as small as a grain of sand or s speck of dust
Down
A region of the solar system beyond the orbit of Neptune that contains most of the dwarf planets, including Pluto
A round body that orbits the sun but does not completely clear its orbital path of debris.
A layer of gas that surrounds a planet
Considered the edge of our solar system, and is thought to be the region where most comets originate
A large, round body that orbits a star, and dominates its orbit by clearing it of other debris
A star and and all the planets and other space objects that revolve around it
A streak of light in the sky caused by pieces of rock that have entered the Earth's atmosphere and are burning up