science crossword HW

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Across
  1. 2. object in the solar system that may have either a terrestrial/rock surface or a gaseous surface
  2. 4. when the chunk of rock leftover from a meteor strikes a planet or moon
  3. 5. uses mirrors to focus light rays
  4. 6. Rocky bodies covered with craters
  5. 8. a collection of stars, gases, dust, and planets, and other astronomical bodies held together by gravity.
Down
  1. 1. chunk of rock moving about the solar system beyond a planet’s atmosphere
  2. 3. Shaped like a flattend disc
  3. 4. chunk of rock that burns upon entering a planet’s atmosphere
  4. 6. Our solar systems galaxy
  5. 7. Measurement equal to how far light travels in one year