SCIENCE CHEMISTRY CROSSWORD

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Across
  1. 1. A physical change from a liquid to a solid
  2. 3. Any substance that takes up space and has mass
  3. 4. A chemical change where iron combines with oxygen and water
  4. 5. A substance with a fixed shape and volume
  5. 7. An attractive force that holds two atoms together
  6. 9. The breakdown of food by physical and chemical changes
  7. 10. A number placed before a formula in a chemical equation
  8. 12. A representation of how a chemical reaction rearranges atoms
  9. 13. A chemical change where a substance burns
  10. 14. A change in matter that forms one or more new substances
  11. 17. Any substance that can burn
  12. 19. A physical change from a gas to a liquid
  13. 20. A physical change from a liquid to a gas
  14. 22. One of the forms that matter can take, such as solid, liquid or gas
  15. 23. A physical change from a gas to a solid
  16. 24. A physical change from a solid to a gas
  17. 25. A physical change from a solid to a liquid
  18. 26. A physical change where two or more substances are combined
  19. 29. A substance that reacts to form one or more new substances
Down
  1. 2. The re-arrangement of atoms to form one or more new substances
  2. 6. reaction A reaction that absorbs heat
  3. 8. reaction A reaction that releases heat
  4. 11. A change in matter that does not form new substances
  5. 15. The rule that the number of atoms in a chemical reaction remains the same
  6. 16. A substance with a fixed volume that flows and changes shape
  7. 18. A physical change where a solid spreads through a liquid
  8. 21. A substance formed by a chemical reaction
  9. 27. A substance with no fixed shape or volume
  10. 28. An atom or molecule