Understanding Matter Crossword Puzzle

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Across
  1. 2. The kind of shape a solid has (e.g., a cube or sphere has a ____ shape).
  2. 4. The regular arrangement of particles in a solid
  3. 9. The ability of liquids and gases to move easily.
  4. 10. The very tiny things that matter is made from.
  5. 13. What solids and liquids cannot be
  6. 15. A state of matter that takes the shape of its container and can flow.
  7. 16. Anything that has mass and takes up space
  8. 18. The gas state of water.
  9. 19. Gas particles move at a high ____.
  10. 20. What matter takes up.
Down
  1. 1. How solid particles move, staying in place
  2. 3. The theory that states that matter particles constantly move
  3. 5. Liquids take the shape of their ____
  4. 6. A state of matter where particles are far apart and move quickly.
  5. 7. Another common name for the tiny particles making up matter.
  6. 8. The solid state of water
  7. 11. A state of matter with a definite shape and fixed volume
  8. 12. How particles are spaced in a gas
  9. 14. When a substance increases in volume due to heat
  10. 17. A property of matter that describes how much "stuff" it contains.