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15 Cards in this Set
- Front
- Back
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asteroid
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A small rocky boy orbiting the sun.
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comet
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A celestial body that consists of a fuzzy head usually surrounding a bright nucleus; develops a long tail.
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conduction
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Process by which heat or elctricity is trnsmitted through a material or body without movement of the medium itself.
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convection
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The circulatory motion that occurs in a fluid at a non-uniform tem[erature owing to the variation of its density and the action of gravity.
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core
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The central part of a celestial body (as Earth or sun) usually having different physical properties from the surounding parts.
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crust
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The outer part of a planet, moon, or asteroid composed essentially of crystalline rocks.
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crustal deformation
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A change in the crust of a planet, moon or asteroid.
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eclipse
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The total or partial obscuring of one celestial boyd by another.
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electromagnetic radiation
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A kind of radiation including visible light, radio waves, gamma rays and x-rays in which electric and magnetic fields vary simultaneously.
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electromagnetic spectrum
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The entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves and including visible light.
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focus
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The place of origin of an earthquake or moonquake.
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galaxy
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Any of the very large groups of stars and associated matter that are found throught the universe.
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gravity
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The gravitational attraction of the mass of the Earth, the moon or a planet for bodies at or near its surface
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interstellar
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Located, taking place, or traveling among the stars, especially of the Milky Way galaxy.
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moon cycle
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The cycle of the moon's [hases, from new to full and back.
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