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Unit 8 Vocabulary

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