States of Matter

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Across
  1. 2. The process of a liquid becoming a solid.
  2. 4. The amount of matter in a given space or volume.
  3. 6. The temperature at which a liquid turns into a gas.
  4. 8. The theory that explains the behavior of particles in different states of matter.
  5. 10. The state of matter with both a fixed shape and a fixed volume.
Down
  1. 1. The process where a solid changes directly into a gas without becoming liquid first.
  2. 3. The temperature at which a solid becomes a liquid.
  3. 5. The process where particles spread out evenly in a space, moving from high to low concentration.
  4. 7. The state of matter with neither a fixed shape nor a fixed volume.
  5. 9. The state of matter with a fixed volume but no fixed shape.