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The Universe

The Universe Unit - Vocabulary List

planetA large object that moves around a star
outer planetsThe planets farthest from the sun; Jupiter, Saturn, Uranus, Neptune, and Pluto
solar systemA group of objects in space that move around a central star
gas giantsThe planets, jupiter, Saturn, Uranus, and Neptune, which are large spheres made up mostly of gases
cometA small mass of dust and ice that orbits the sun in a long, oval-shaped path
space probeA space vehicle that carries cameras, instruments, and other research tools
starA huge, burning sphere of gases; for example, the sun
telescopeA device people use to observe distant objects with their eyes
asteroidA small rocky object that moaves around the sun
constellationThe pattern formed by a group of stars in the sky
inner planetsThe planets closet to the sun; Mercury, Venus, Earth, and Mars

Mrs. Foster

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