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Science Vocabulary

Earth Gravity and Space

TermDefinition
shadow The darkest area created by an object that stops light
orbit the path an object follows around another object
rotation when a planet or moon travels around the body it is orbiting one time (for Earth that is 24 hours)
axis an invisible line around which an object rotates or spins
revolution when a planet or moon travels around the body it is orbiting one time (for Earth that is 365 days or a year)
sun a star around which Earth and other planets in our solar system revolve. It furnishes heat, light, and energy
universe everything that exist including all matter and energy, the planets, stars, galaxies, and all contents of space
galaxy a large group of stars and planets held together by gravity.
solar system the sun and everything that orbits or travels around the sun.
planet a large round object in space that Does Not give off light and that orbits a star
star a ball of burning gas in space that gives off light
Created by: user-1732594
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