science crossword puzzle

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Across
  1. 3. a group of stars in the sky that looks like a hunter with a line of three bright stars for a belt
  2. 4. a natural luminous body visible in the sky especially at night
  3. 6. example, exemplar, ideal, and model
  4. 8. a model of a set of problems or events that can be used to teach someone how to do something
  5. 9. a scientist who studies the stars, planets
Down
  1. 1. A group of stars seen as forming a figure or design in the sky
  2. 2. an invisible force that pulls objects toward each other
  3. 5. a regular, repeating path that one object in space takes around another one
  4. 7. to turn or cause something to turn in a circle
  5. 10. the time in the morning when the sun first appears in the sky