Science

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Across
  1. 2. carbon dioxide is a ..........
  2. 4. ........ is a mixture of gases
  3. 7. liquid has a definite..........
  4. 8. moving is called.........
  5. 9. liquid has no definite.........
  6. 11. 1/5 of the air is made up of .........
  7. 12. one of the physical property of matter
Down
  1. 1. ............ can be mould into any shape
  2. 3. water is a ...........
  3. 5. a brick is a.........
  4. 6. this is another physical property of matter
  5. 10. human beings, animals and ....... need oxygen