Astronomy Ch 1 Section 3 Crossword
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Down:
1) a scientist who studies the origin and dynamics of the universe 3) a relatively large clump of material formed in early stages of solar-system formation, which was the seed of the planets you see today 4) any of the planets Mercury, Venus, Earth, and Mars or a planet similar in size and composition 6) general term used for any "fuzzy" patch in the sky , either light or dark; a cloud of interstellar gas and dust 8) a small planetary body in orbit around the sun, larger than a meteoroid but smaller than a planet 10) emission of energy in the form of rays or waves 12) a nuclear process that releases energy when lightweight nuclei combine to form heavier nuclei 14) a solid, liquid, or gas possesses inertia and is capable of occupying space 16) a planet beyond our solar system, orbiting a star other than our Sun |
Across:
2) the amount of matter an object contains5) the apparent change of wavelength occurring when an object is moving toward or away from an observer7) the outer solar system planets, Jupiter,Saturn,Uranus, and Neptune composed of mostly hydrogen, helium, and methane 9) a theory to try to explain the origin of the universe, which proposes that the universe has expanded from a condition that existed at "time zero"11) one of the small bodies( usually micrometers to kilometers in diameter) that formed from the solar nebula and eventually grew into protoplanets 13) form of electromagnetic radiation that fills the universe 15) the horizontal distance between two successive crest of a wave17) a chunk of frozen gases, ice, and rocky debris that orbits the sun 18) scientific idea that our solar system formed from a giant rotating cloud of gas and dust |
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