Physical Science

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Across
  1. 3. Converts mechanical energy to electrical energy
  2. 6. Accumulation a excess electrons
  3. 9. Rate of change of velocity
  4. 11. A push or pull
  5. 16. Transfer of thermal energy through collision
  6. 17. Distance an object travels per unit of time
  7. 19. Organized procedure for testing a hypothesis
  8. 23. Number of units of each substance
  9. 25. Transfer of thermal energy with a fluid
  10. 26. Formed by two or elements
  11. 27. Stored energy
  12. 28. Temperature when a solid begins to liquify
  13. 29. The smallest particle of an element
Down
  1. 1. A opposing force that slows a sliding object
  2. 2. Change change in size, shape, or state of matter
  3. 4. To oppose electron flow
  4. 5. Measure of energy within a wave
  5. 7. Shiny appearance
  6. 8. Different charge
  7. 10. from one material to another
  8. 12. SI unit for energy
  9. 13. Vertical columns
  10. 14. change in pitch due to moving wave source
  11. 15. Flow from warmer to cooler
  12. 18. Different mass
  13. 20. Negative
  14. 21. Do not conduct as well as metals
  15. 22. Positively charged center of an atom
  16. 24. No mass
  17. 25. Positive