Changes of State

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Across
  1. 4. A temperature at which a substance boils.
  2. 5. A change of state directly from solid to gas.
  3. 6. the contraction of matter caused by a change in heat.
  4. 7. A temperature at which a substance freezes.
Down
  1. 1. A temperature at which a substance melts.
  2. 2. the expansion of matter caused by a change in heat.
  3. 3. Change that alters the form of an object, without changing what type of matter it is.