Matter choice

Edit Answers
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Across
  1. 2. bubbling over the stove
  2. 3. ice , below degrees
  3. 5. hard
  4. 8. flammable
  5. 9. hot , cold , warm
  6. 10. takes up space
Down
  1. 1. merge
  2. 4. nobble_
  3. 6. water
  4. 7. two or more combined