Science choice board

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Across
  1. 3. a tendency to do nothing or to remain unchanged
  2. 4. a dimensionless quantity representing the amount of matter in a particle or object
  3. 6. strength or energy as an attribute of physical action or movement
  4. 7. forces that are equal in size and opposite in direction
Down
  1. 1. Newton's third law
  2. 2. the force applied in one direction is greater than the force applied in the opposite direction.
  3. 5. the rate of change of velocity