Space Words

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Across
  1. 5. term describing a model of the solar system in which Earth and the other planets revolve around the sun.
  2. 7. a chunk of rock or dist in space that is smaller than an asteroid.
  3. 8. an object that orbits a planet.
  4. 9. term describing a model of the universe in which Earth is at the center of the revolving planets and stars.
Down
  1. 1. a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
  2. 2. an object that orbits a star, is large enough to have become rounded by its own gravity and has cleared the area of its orbit.
  3. 3. a pattern or grouping of stars that people imagine to represent a figure or object.
  4. 4. a loose collection of ice and dust that orbits the sun, typically in a long narrow orbit.
  5. 6. an oval shape which may be elongated or nearly circular; the shape of a planets' orbit.
  6. 8. a ball of hot gas, primarily hydrogen and helium that undergoes nuclear fusion.