States of Matter Unit Study Guide

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Across
  1. 2. molecules can slip and slide
  2. 3. when solid becomes liquid
  3. 4. when liquid becomes solid
  4. 6. changes that CAN be undone
  5. 8. molecules tightly packed together
  6. 10. changes that CANNOT be undone
  7. 11. when solid becomes gas
  8. 12. when gas becomes liquid
Down
  1. 1. motion energy
  2. 5. when liquid becomes gas
  3. 7. solid that forms in a solution
  4. 9. molecules are high energy and fly around