Practice

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Across
  1. 5. The color of hot stars.
  2. 7. They are giant balls of hot, glowing gas.
  3. 8. The color of cool stars.
Down
  1. 1. They are also called minor planets.
  2. 2. The closest star to Earth.
  3. 3. It is a large system of stars,matter,dustand gas.
  4. 4. They are small pieces of asteroids.
  5. 6. They have a tail.