State of Matter

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Across
  1. 4. The process of a solid turning directly into a gas without becoming a liquid first
  2. 5. The process of liquid turning to solid
  3. 6. State of matter with particles closely packed but able to slide past each other
  4. 7. The process is slow and occurs at the surface of the liquid
Down
  1. 1. Motion of particles in a solid
  2. 2. Anything that occupies space and has mass: Matter
  3. 3. State of matter with particles tightly packed in a regular pattern
  4. 8. Tiny moving particle