Matter in our surroundings

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Across
  1. 6. A mixture in which the particles are evenly distributed.
  2. 9. The state of matter with a definite volume but no definite shape.
  3. 10. A substance made up of two or more elements chemically combined.
  4. 12. A substance made up of only one type of atom.
  5. 13. The basic building blocks of matter.
  6. 14. The process of a liquid changing into a gas at the surface.
  7. 15. The physical form in which matter can exist: solid, liquid, or gas.
  8. 16. The state of matter with a definite shape and volume.
  9. 17. The process of a solid changing into a liquid.
  10. 18. The process of a gas changing directly into a solid without becoming a liquid first.
Down
  1. 1. The smallest unit of an element that retains its chemical properties.
  2. 2. The state of matter that has neither a definite shape nor a definite volume.
  3. 3. The process of converting a substance from a solid to a gas directly
  4. 4. The process of a liquid changing into a solid.
  5. 5. The amount of space that matter occupies.
  6. 7. A mixture in which the particles are not evenly distributed.
  7. 8. The process of a gas changing into a liquid.
  8. 11. The amount of matter in an object.