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Unit 8 Vocabulary

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Across
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a spherical region that surrounds the solar system
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: one of the large planets made mostly of gas
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: the region of interplanetary space between the orbits of Mars and Jupiter in which most asteroids are found
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device without people on it that is designed for travel or operation outside of the Earth’s atmosphere
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a natural object that revolves around a planet
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force of attraction between two objects
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oval shaped
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solar system object made of ice, which follow a long, narrow orbit around the Sun
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objects of rock, metal, and ice that are smaller than planets and revolve around the Sun
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a relatively small, rocky body that travels through space
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object that revolves around a larger object in space
Down
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a relatively large spherical body that surrounds a star
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one orbit of an object in space around another object in space
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a celestial body similar to a planet by orbiting in a zone that has many other objects in it
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: a unit used to measure distances in the Solar System equal to the average distance between the Earth and Sun
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a device that is used to obtain information from outer space and send it back to Earth
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a small body from which a planet originated in the early stages of development of the solar system
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rocky planets in the inner solar system
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sun-centered
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a rotating cloud of gas and dust from which the sun and planets formed
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spinning of a planet, moon, sun, or another object around its axis
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describes something that using Earth as the reference point
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a piece of a meteor that breaks off and lands on the Earth
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a piece of rock from space the enters Earth’s atmosphere and burns, creating a bright streak of light across the sky