What's the Matter?

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Across
  1. 2. is anything that has a mass and occupies space
  2. 4. is a homogeneous mixture of two or more substances in variable composition
  3. 5. are properties of matter that depend on the amount of matter
  4. 7. do not depend on the amount of matter
  5. 8. the fourth state of matter
  6. 9. are substances made up of more than one type of atom
Down
  1. 1. form more than one phase and components are visibly distinguishable from one another
  2. 3. is a chemical property observed when a substance reacts with another substance
  3. 6. are substances that are made of only one type of atom
  4. 10. are made up two or more substances that are physically combined