front 1 asteroid | back 1 a small rocky body orbiting the sun |
front 2 asteriod belt | back 2 the region of the solar system between mars and jupiter |
front 3 atmosphere | back 3 a mixture of gasses that surrounds a planet |
front 4 comet | back 4 a ball of frozen dust a rock that has a tail |
front 5 crater | back 5 a large round pit caused by the impact of a meteoroid |
front 6 galaxy | back 6 a collection of stars, dust, and gas bound together by gravity |
front 7 gas giant | back 7 the outer planets |
front 8 gravity | back 8 a force that pulls objects towards eachother |
front 9 planets | back 9 A celestial body moving in an elliptical orbit around a star |
front 10 moon | back 10 a natural object that orbits a planet |
front 11 milky way | back 11 the galaxy containing the solar system |
front 12 orbit | back 12 The path an object follows as it moves around another object |
front 13 revolution | back 13 The movement of an object around another object |
front 14 solar system | back 14 a collection of eight planets and their moons in orbit around the sun |
front 15 terrestrail | back 15 the inner planets |
front 16 light year | back 16 the distance light travels in one year |
front 17 dwarf planet | back 17 a celestial body resembling a small planet but lacking a certian technical criteria that is qualified to classify as a planet. |
front 18 star | back 18 a ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion |
front 19 kupier belt | back 19 the region of out solar system that is beyond neptune |
front 20 rotation | back 20 the spinning motion of a planet on its axis |
front 21 meteor | back 21 a small body of matter in outer space that enters earths atmosphere appearing as a streak of light. |
front 22 universe | back 22 all of space and everything in it. |