Earth Science Vocabulary 1

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Objects that are part of the Earth such as rocks, oceans, and clouds

Orbital motion of a satellite around a second object

An object in the sky, such as the sun, moon, stars, that is outside Earth's atmosphere

Spinning of a body around an internal axis

Path of any object around a second object

Observed patterns of stars that people use to mark the positions of stars in the sky

An imaginary sphere that encircles the Earth and which all objects in the night sky appear

Early model of the solar system in which the Earth is stationary and all other objects in the universe revolve around the Earth.