Physical Science Performance Assessment

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Across
  1. 2. element with 39 protons
  2. 5. 4th state of matter
  3. 9. amount of waves in time
  4. 10. SI unit for force
  5. 14. magnet powered by electricity
  6. 15. particles packed together
  7. 16. SI unit for energy
Down
  1. 1. waves bending at an opening
  2. 3. height of a wave
  3. 4. force pushing downwards
  4. 6. element with 4 protons
  5. 7. element with 54 protons
  6. 8. acceleration in a certain direction
  7. 11. length of waves
  8. 12. curved lens
  9. 13. no electricity comes through