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