Science

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Across
  1. 2. when you change a substance and back again
  2. 6. the subject you do experiments in
  3. 7. all the parts that make up a substance
  4. 9. all the things you need to complete an experiment
  5. 11. H20 is the symbol for this
  6. 13. the steps you follow when doing an experiment
  7. 15. a firm, stable, strong shape
  8. 16. you find them at birthday parties, use your mouth to blow them up
  9. 17. a reaction that makes a hissing sound
  10. 18. a substance found in the air
Down
  1. 1. a runny, free flowing substance
  2. 3. when you test an idea in science
  3. 4. when particles move out of a substance into the air
  4. 5. when you warm something you add this
  5. 8. when you put a substance in a freezer it will
  6. 10. happens when a substance is heated
  7. 12. when particles spread out in a liquid
  8. 14. describes the texture of substance when it sticks to you