Forces crossword

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Across
  1. 6. Vehicle that travels to space.
  2. 9. Forces that cause movement.
  3. 11. Light travels over this to reach Earth from the Sun.
  4. 12. Amount of matter in an object.
  5. 13. The farthest planet from the Sun.
  6. 15. A force that opposes motion.
  7. 16. Planet orbiting a star outside our Solar System.
  8. 17. Closest planet to the sun.
  9. 18. Known for its rings and strong gravity.
  10. 19. Takes 8 minutes to reach Earth from the sun.
  11. 21. Stretches with added weight.
Down
  1. 1. Push or pull on an object.
  2. 2. Unit of force.
  3. 3. Planet with similar gravity to Earth.
  4. 4. Device for measuring weight.
  5. 5. The star at the center of our Solar System.
  6. 7. Mass affected by gravity.
  7. 8. Type of forces with no movement.
  8. 10. Study of celestial objects.
  9. 14. A system of stars.
  10. 16. Our home planet.
  11. 20. Force that pulls objects down.