MATTER

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Across
  1. 5. It is any aspect of a substance which is only seen by means of a chemical reaction.
  2. 6. It is a change from a solid to a liquid usually through the action of heat.
  3. 7. It is the amount of matter or substance that makes up an object.
  4. 8. It is the process of changing from a liquid to a vapor.
Down
  1. 1. Any substance (as an acid) that is formed when two or more other substances act upon one another or that is used to produce a change in another substance.
  2. 2. The act of combining.
  3. 3. It is existing in a form that can be touched or seen physical objects.
  4. 4. It is the process when a liquid turns into a solid.