front 1 asteroid | back 1 A small body of rock orbiting the rock |
front 2 asteroid belt | back 2 the region of the solar system between the orbits of mars and jupiter |
front 3 Atmosphere | back 3 A mixutre of gasses that surrounds a planet or moon |
front 4 comet | back 4 A ball frozen dust and rock orbits the sun and has a tail |
front 5 crater | back 5 A large round pit caused by the impact of meteorite |
front 6 galaxy | back 6 A collection of stars and dust and gas bound together by gravity |
front 7 Gas giant | back 7 The outer planet |
front 8 gravity | back 8 A force that pulls planets toward each other |
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 contacting the solar system |
front 12 orbit | back 12 the path an object follows as it moves around other objects |
front 13 Revolution | back 13 The movement of an object around another object |
front 14 roatation | back 14 The spinning motion of a planet on its axis |
front 15 Solar system | back 15 The collection of 8 planets and their moons in orbit around the sun |
front 16 Star | back 16 A ball of hot gas primarily hydrogen and helium that undergoes nuclear fusion |
front 17 Terrestrial | back 17 The name of the inner planets |
front 18 dwarf planet | back 18 A celestial body moving in an elliptical orbit around the star |
front 19 light year | back 19 The distance the light travels in one year |
front 20 kuiper belt | back 20 A region of the solar system that is just beyond the orbit of neptune |
front 21 metoer | back 21 A small body of matter form outer space that enter the earths atmosphere |
front 22 Universe | back 22 All of space and everything in it |