My science project

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Across
  1. 1. Object wanting to keep doing the same motion
  2. 5. Study of matter, energy, and motion
  3. 7. Amount of matter in an object
  4. 11. Speed with direction
  5. 12. How far something travels
  6. 14. Equal forces acting on an object
  7. 15. Opposite force in Newton’s 3rd Law
  8. 18. Scientist who created the laws of motion
  9. 19. Force that pulls objects toward Earth
  10. 20. Forces that cause movement
Down
  1. 2. First force in Newton’s 3rd Law
  2. 3. Anything that has mass and takes up space
  3. 4. Strength of motion of an object
  4. 6. Distance traveled over time
  5. 8. Force that slows objects down
  6. 9. Change in position over time
  7. 10. Speed in a certain direction
  8. 13. Speeding up or slowing down
  9. 16. Ability to do work
  10. 17. A push or pull on an object