Physical Science PA

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Across
  1. 4. the change in direction of a wave passing
  2. 5. how fast something moves in a direction
  3. 7. the force pulling you to the ground
  4. 8. can not be created or destroyed
  5. 9. heat being transferred by touching
  6. 10. how much something weighs
  7. 14. heat being transferred through air or water
  8. 15. the type of heat the sun gives off
Down
  1. 1. the spreading of waves around obstacles
  2. 2. energy being exerted
  3. 3. smallest unit
  4. 6. can not be reversed to its original
  5. 11. any substance that cannot be decomposed into simpler substances
  6. 12. electric charge being repulsive or attractive
  7. 13. object at rest stays at rest