SCIENCE

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Across
  1. 4. Oil is less _____ than water
  2. 5. Changes the substance
  3. 9. the energy of movement
  4. 10. never runs out
  5. 11. runs out eventually
  6. 13. two elements that can't be separated
Down
  1. 1. energy that about to happen
  2. 2. does not change what the substance is
  3. 3. two elements that can be separated
  4. 6. burning your hand on a stove
  5. 7. radio waves
  6. 8. the sun shining on you
  7. 12. pulling back a rubber band