Solar System Vocabulary

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Across
  1. 1. To travel in a closed path
  2. 4. A grouping of gas, dust, and many stars, plus any objects that orbit those stars
  3. 5. An icy chunk of frozen gases, water, and dust that continually orbits the sun
  4. 8. An imaginary line that passes through Earth's center
  5. 9. A huge ball of very hot gases in space
  6. 10. To spin on an axis
  7. 12. An imaginary line around Earth equally distant from the North and South Poles
  8. 14. planet An object that is spherical in shape, orbits the Sun, is not a satellite, and has not cleared the area of its orbit of smaller debris
  9. 16. Any natural body that revolves around a planet; also known as a "satelite"
  10. 17. Everything that exists
  11. 18. The path one body takes in space as it revolves around another body
Down
  1. 2. orbit The revolving of one object around another in an oval-shaped path; all 8 planets travel in this type of orbit
  2. 3. A pattern of stars, named after a mythological or religious figure, an object, or an animal
  3. 4. The force that pulls objects toward one another and keeps objects in orbit
  4. 6. An object made of frozen gases, rock, ice, and dust that orbits the Sun, found mostly in the region between Mars and Jupiter (asteroid belt)
  5. 7. A large, round body in space that orbits the Sun; there are 8 in our solar system
  6. 11. The star at the center of our solar system; medium size star with medium temperature
  7. 13. phases The changing appearances of the Moon as seen from Earth
  8. 15. system The Sun, the planets and other objects that orbit the Sun
  9. 16. A chunk of rock or metal from space that falls through the atmosphere, or layer of gases, surrounding Earth