Week 24 Vocabulary

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Across
  1. 2. begins and ends with the same type of matter
  2. 5. something that is printed or published
  3. 8. happening earlier
  4. 9. by chance
  5. 11. physical change in which one state of matter changes to another
  6. 13. important
Down
  1. 1. begins with one kind of matter but ends with another
  2. 3. a printed list of questions used by researchers
  3. 4. rate; speed
  4. 6. change of a liquid to a gas without boiling
  5. 7. happening often; familiar
  6. 9. solid, brown substance formed when iron gets wet and reacts with oxygen in the air
  7. 10. turn down
  8. 12. black substance formed with silver reacts with sulfur in the air