Chemical World

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Across
  1. 2. A type of change where no new substance is made
  2. 4. A tool used to separate solids of different sizes
  3. 7. A substance with pH more than 7
  4. 8. Two or more substances mixed together
  5. 9. A type of change where something new is made
  6. 13. A method used to separate colours in ink or lollies
  7. 14. A state of matter that flows and takes the shape of its container
  8. 15. Burning that needs heat fuel and oxygen
  9. 20. What happens when substances change into new substances
  10. 22. When liquid becomes solid
  11. 23. A state of matter with fixed shape
  12. 24. One of the three things needed for combustion
  13. 25. A state of matter with no fixed shape
  14. 26. A stretchy mixture made in class
Down
  1. 1. A test that makes a popping sound when hydrogen burns
  2. 3. The red brown flaky substance formed on iron
  3. 4. A small burning stick that makes sparks
  4. 5. When liquid turns into gas
  5. 6. A gas that makes a pop sound when tested
  6. 10. When gas turns back to liquid
  7. 11. Tiny pieces that make up matter
  8. 12. A metal that burns very brightly
  9. 16. When solid becomes liquid
  10. 17. A gas needed for fire
  11. 18. A substance with pH less than 7
  12. 19. A tool used to separate solids from liquids
  13. 21. When something is not acidic or basic
  14. 22. Something that is burned in combustion