States of Matter Crossword

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Across
  1. 2. When a liquid turns into a solid by cooling.
  2. 4. The smallest part of an element; like a building block of matter.
  3. 7. The form that matter can take: solid, liquid, or gas.
  4. 11. A tiny piece of matter. Everything is made of particles.
  5. 12. The amount of space something takes up.
  6. 15. When matter changes from one state to another, like solid to liquid.
  7. 16. When a gas turns into a liquid.
  8. 18. The force particles apply when they hit surfaces
  9. 19. When a liquid rapidly turns into a gas, all through the liquid.
  10. 20. A state of matter that has a fixed volume but takes the shape of its container.
Down
  1. 1. How hot or cold something is.
  2. 3. The amount of matter in something
  3. 5. Two or more atoms joined together.
  4. 6. A state of matter that spreads out to fill all the space available.
  5. 8. A state of matter that keeps its shape and volume.
  6. 9. When a liquid or gas moves smoothly.
  7. 10. To press something into a smaller space.
  8. 13. When a liquid turns into a gas, usually from the surface.
  9. 14. Anything that has mass and takes up space.
  10. 17. When a solid turns into a liquid by heating.