chapter 5: Matter

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Across
  1. 4. liquid turns into solid
  2. 7. gas will turn into liquid
  3. 8. flammable matter
  4. 9. matter that difficult to compress
  5. 10. has mass and occupies space
  6. 13. solid directly turns into gas
  7. 14. occurs when iron exposed to water and air
  8. 15. plastic is made of
Down
  1. 1. temperature at which substances changes from liguid to gas
  2. 2. matter that has fixed shape
  3. 3. mass per unit volume
  4. 5. matter that compressible
  5. 6. steel is made of
  6. 10. temperature at which substances changes from solid to liquid
  7. 11. liquid is evaporated slowly and turns into gas
  8. 12. solid turns into liquid