front 1 asteroid | back 1 a small rocky body orbiting the sun |
front 2 austeroid belt | back 2 the region of the solar system between the orbits of mars and Jupiter |
front 3 atmospere | back 3 a mixture of gasses that surround a planet or moon |
front 4 comet | back 4 a ball of frozen dust and rock that orbits the sun and has a tail |
front 5 crater | back 5 a large round pit caused by the impact of a meteoriod |
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 toward each other |
front 9 plantets | back 9 Hey celestial body moving in an ecliptical orbit around a star |
front 10 moon | back 10 A natural object that orbited planet |
front 11 no data | 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 Rotation | back 14 The spinning motion of a planet on its axis |
front 15 Solar system | back 15 The collection of eight planets and their moons and a orbit around the sun |
front 16 star | back 16 A ball of hot gas primarily hydrogen and helium that undergoes nuclear fission |
front 17 Terrestrial | back 17 The name of the inner planets |
front 18 Dwarf planet | back 18 A celestial body resembling a small planet but lacking certain technical criteria that are required for it to be a classified as such |
front 19 no data | back 19 The decent 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 Meteor | back 21 A small body of matter from outer space that enters the Earth's atmosphere appearing as a streak of light |
front 22 Universe | back 22 All of space and everything in it |