Changes of State

123456
Across
  1. 5. Liquid particles gain energy and escape as gas.
  2. 6. Solid gains heat and particles slide past each other.
Down
  1. 1. Gas particles cool down and turn into liquid.
  2. 2. How particles move in a fixed position inside a solid.
  3. 3. Particles lose energy and lock into a rigid pattern.
  4. 4. The gas state of water.