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Space and Earth Vocabulary
STUDY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
the sun and all the bodies that orbit it
Solar System
one full orbit of an object around another object
revolution
an imaginary center line around which Earth rotates
axis
one whole spin of an object on it's axis
rotation
a spacecraft that gathers data without a crew
space probe
a frozen mass of ice and dust orbiting the sun
comet
a rocky mass up to several hundred kilometers wide that revolves around the sun
asteroid
an object in orbit around another object
satelite