science crossword

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Across
  1. 3. what energy increases when two opposites are pulled apart
  2. 4. what happens when I pull two negatives apart?
  3. 10. if I approach pieces of paper with a negativelty charges balloon, what will happen?
  4. 14. loose particles that energy flow through
Down
  1. 1. force
  2. 2. the release of static charge
  3. 5. ___ field lines go in
  4. 6. neutral
  5. 7. opposites ___
  6. 8. negative
  7. 9. proton
  8. 11. tight particles that energy cant flow through
  9. 12. what do two positives do
  10. 13. ____ field lines go out