Solar System

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Across
  1. 1. the huge system of stars, gas, dust held together by gravity, (ours is the milky way)
  2. 7. natural objects in space like the stars, planets, moons, and asteroids
  3. 8. a tool that makes distant objects in space appear closer and clearer
  4. 9. the curved path an object follows as it travels around another object in space
  5. 10. the rocky planets that are closest to the sun
  6. 12. the force that pulls objects toward each other
  7. 14. the force of gravity acting on an objects mass
  8. 16. a person trained to travel and work in space
  9. 17. a streak of light in the sky caused by a space rock burning up earth’s atmosphere
  10. 18. the changing appearances of the moon as it orbits earth
  11. 19. the amount of matter in an object
Down
  1. 2. the non scientific study of the stars and how they effect us
  2. 3. the spinning of a planets on its axis
  3. 4. when one celestial body moves into the shadow of another
  4. 5. an imaginary line through a planet that it rotates around
  5. 6. the region in space between Mars and Jupiter where many asteroids are found
  6. 11. the movement of a planet around the sun
  7. 13. the sun and all of the objects that orbit it
  8. 15. the gaseous planets farthest away from the sun