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Mrs. P's Chapter 4
Grade 5 Chapter 4 Vocabulary Words - Earth & Space
Term | Definition |
---|---|
revolution | one full orbit around the sun |
axis | an imaginary line around which an object spins |
solar flare | an explosive eruption of waves and particles into space |
rotation | one whole spin of an object on its axis |
comet | a frozen mass of different types of ice and dust orbiting the sun |
moon | a natural object that revolves around a planet |
planet | a large, round object that revolves around a star and has cleared the region around its orbit |
dwarf planet | a large, round object that revolves around the sun but has not cleared the region around its orbit |
outer planet | any of the four planet s in our solar system beyond Mars |
inner planet | any of the four closest planets to the sun |
asteroid | a rocky mass up to several hundred kilometers wide that revolves around the sun |
space probe | a spacecraft that gathers data with out a crew |
satellite | a natural or artificial object in space that circles around another sun |
solar system | the sun, planets, and their moons, and other objects that revolve around the sun |
gravity | the force of attraction between any two objects due to their mass |
telescope | an instrument that makes distant objects appear closer and larger |
meteoroid | a small piece of rock or metal that travels in space and orbits the sun |
meteor | a bright streak of light that passes through space and orbits the sun |
meteorite | a piece of meteroid that lands on Earth after passing through the atmosphere |
star | gigantic balls of very hot gases that give of radiation |
orbit | the path an object takes as it revolves around a star planet, or moon |
constellation | a group of stars that form a pattern |