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7th Grade
Components of Our Solar System
| Question | Answer |
|---|---|
| asteroid | relatively small, rocky object that orbits the Sun |
| asteroid belt | region between Mars and Jupiter, where most of the asteroids in the solar system are found |
| comet | celestial body, composed of frozen gases, rocks, and dust, that orbits the Sun |
| Kuiper Belt | ring-shaped region on the outer edges of the solar system containing icy debris such as comets and dwarf planets |
| meteor | rock from outer space that burns up and forms a streak of bright light in the sky as it enters Earth's atmosphere |
| moon | natural satellite that orbits a planet or other larger celestial object |
| natural satellite | celestial body that in not human-made and orbits a larger body |
| Oort Cloud | spherical region of icy, comet-like bodies believed to be located in the farthest region of our solar system, beyond the Kuiper Belt |
| planet | spherical celestial body that orbits a star in a path it has cleared of smaller objects |
| revolution | completion of one full orbit |
| rotation | act of turning in place, or spinning, about a central axis |
| star | massive celestial body of gas that is held together by its own gravity and that produces light as a result of nuclear fusion reactions at its core |
| Sun | only star in our solar system and the body around which all objects in our solar system orbit |
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