Solar System

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Across
  1. 1. The largest object in the asteroid belt
  2. 5. Comets are made mostly of ice, dust, and this
  3. 6. NASA's spacecraft that explored asteroids and collected samples
  4. 7. A meteor that survives and hits Earth’s surface
  5. 9. The solid core of a comet
  6. 13. Rocky object that orbits the Sun, mostly found between Mars and Jupiter
  7. 15. A chunk of rock or metal that burns up in Earth’s atmosphere
Down
  1. 2. Bright streak of light caused by a meteor in Earth’s sky
  2. 3. Region beyond Neptune filled with icy objects
  3. 4. Area where long-period comets may originate, far beyond the planets
  4. 8. Tiny space dust that enters Earth’s atmosphere and burns up
  5. 10. Frozen space object with a glowing tail when near the Sun
  6. 11. The fuzzy cloud of gas and dust around a comet's nucleus
  7. 12. The planet closest to the asteroid belt
  8. 14. The path a comet follows around the Sun