Astronomy 2 Crossword
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Down:
1) Density that is less than 1 will __________ in water.2) _______________ keeps temperatures on a planet more stable.3) Sun forms in center. Nuclear fusion begins. A star is born!4) bright streak as meteoroid burns from friction in atmosphere5) Planets move faster when closer to the sun.6) As the distance between 2 objects increases, the force of gravity ___________.12) The sun's gravity keeps planet in ____________.14) Density that is greater than 1 will ___________ in water.15) contains comets16) small, dense, rocky, hot, closest to the sun21) Earth's twin, highest surface temperature, closes to Earth, no moon26) The sun is 74% H, 25% He, 1% other _____________.29) Red planet (iron oxide), 2 moons, thin atmosphere30) Objects with greater ____________ have greater force.32) Liquid water, highest surface gravity, 1 moon, photosynthesis34) largest, highest surface gravity, fastest rotation, high wind speed, 63 moons |
Across:
7) contains dwarf planets, asteroids, and meteoroids8) made of ice, rock and dust (dirty snow ball), has a tail9) Every second, 4,000,000 tons of solar matter is converted into ____________.10) There are up to a _______________ small bodies in our solar system.11) Distance of a planet from the sun to the time it takes to revolve is related.13) Gravity causes solar nebula to collapse toward dense, hot, rotating protostellar disk.17) lots of craters, long days, smallest, orbits fastest, no moon18) large, gaseous, cold, rings, rotate faster, many moons19) made of stony-silicate minerals, iron, and nickel20) Gravity and _____________ keep the planets in motion.22) made of hdydrocarbons23) Planetesimals form.24) blue green color due to methane, titled at 98 degrees, 27 moons25) When did the solar system form?27) contains Kuiper belt objects, dwarf planets, comets, asteroids28) Gas giants have more moons because larger mass allow for greater ________________ to attract moons.31) largest small bodies33) Planetary orbits are ellipses (oval orbits) with the sun at one focus35) Objects that are _____________ have greater force than objects farther apart.36) Jupiter's twin, second largest, 60 moons37) Planets form.38) Farthest, Uranus' twin, strongest winds, coldest, 13 moons |
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