Physical Science Review

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Across
  1. 5. one of the chemicals on the periodic table
  2. 7. force that pulls you towards center of Earth
  3. 8. mass divided by volume
  4. 11. mass can't be created or destroyed
  5. 13. long wavelength and helps us communicate
  6. 14. energy can't be created or destroyed
  7. 18. smallest unit of matter
  8. 19. one force is stronger than the other
  9. 21. light, ROYGBIV
  10. 22. waves that can go through skin but not bone
  11. 24. wave, can detect heat emitted from something
  12. 28. this light gives sunburns\
  13. 29. positive subatomic particle
  14. 30. waves, dangerous waves that are used to kill cancer cells
Down
  1. 1. solid liquid or gas
  2. 2. force that opposes motion
  3. 3. travels fastest in a solid
  4. 4. neutral subatomic particle
  5. 6. energy from moving electrons
  6. 9. forces are equal and opposite
  7. 10. the measure of how hot something is
  8. 12. tendency of a body to move in the same direction
  9. 15. push or pull
  10. 16. last name of your science teacher
  11. 17. amount of matter in an object
  12. 20. stored energy or energy of position
  13. 23. can travel in a vacuum
  14. 25. negative subatomic particle
  15. 26. able to heat substances
  16. 27. energy of movement