matter

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Across
  1. 1. The state of matter with no fixed shape or volume
  2. 4. The change from solid to liquid
  3. 6. The process by which liquid turns into vapour on heating
  4. 7. A liquid takes the shape of the container but has a fixed ___
Down
  1. 2. The change of a solid directly into gas
  2. 3. Ice is the ______ form of water
  3. 5. Anything that has mass and takes up space