Science Crossword

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Across
  1. 1. _____ is how heavy something is.
  2. 3. The force by which a planet draws objects to its center
  3. 6. ______ is when a falling object only has gravity acting upon it.
  4. 9. Strength or power that is exerted upon an object is called _______.
  5. 11. _______ is the measure of how much matter is in a body.
  6. 13. ______ is the rubbing of one object on another
  7. 14. A _____ circular frame made of metal that rotates on an axle
Down
  1. 2. Newton’s ______: the law of action and reaction
  2. 4. An ______ is a sign that points in a particular direction
  3. 5. _______ is the Standard International (SI) unit of force.
  4. 7. the sum of all the forces acting on an object is ______.
  5. 8. A ______ does not change and has a fixed value.
  6. 10. A ____ is two things meant to use together______
  7. 12. Newton’s _______: the law of inertia.