State of Matter

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Across
  1. 1. a basic unit of an element
  2. 3. matter that holds its shape
  3. 5. chemical elements on Earth
  4. 8. when a liquid becomes a gas
  5. 9. all substances around us
  6. 10. when a solid becomes part of a liquid
  7. 11. when a liquid becomes a solid
  8. 14. when a solid becomes a gas
Down
  1. 2. a group of atoms
  2. 4. matter that takes the shape of the container
  3. 6. when 2 or more elements combine
  4. 7. when a gas becomes a solid
  5. 12. matter that fills up a space
  6. 13. ionised gas
  7. 15. when a solid becomes a liquid