Unit 1 - The Universe

Front

Solar Nebula Theory

Back

the formation of our solar system from a cloud made from a collection of dust and gas

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Nebula

Back

giant cloud of dust and gas in space

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Orbital Period

Back

the time it takes for an object to complete one orbit around another object

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Meteoroid

Back

a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere

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Comet

Back

an object consisting of a center consisting of ice and dust

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Asteroid Belt

Back

a region of space between Mars and Jupiter that contains millions of asteroids

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Gravity

Back

the force by which a planet or other body draws objects toward its center

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Terrestrial Planets

Back

a planet with a solid surface made of rock, metals, and other similar solid substances

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Jovian (gas) Planets

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a giant, gaseous planet in our solar system

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Solar System

Back

consists of the Sun and everything that orbits, or travels around, the Sun