Across
- 2. Two or more materials mixed together
- 6. What you start with in a reaction
- 9. Everything is made of this
- 10. pH value of around 7
- 12. Higher pH number
- 13. You cannot get it back to the way it was
- 17. A new substance is formed and you may see a colour change
- 19. Material looks different, but it is still the same substance
Down
- 1. What you end up with after a reaction
- 3. When a substance is mixed with a liquid
- 4. The solid that is dissolved
- 5. You can return the material to its initial state
- 7. Low pH number
- 8. Particles are close together, moving more slowly
- 11. Particles are very spread apart, moving very fast
- 13. Can be used to determine the pH of a substance
- 14. The liquid that does the dissolving
- 15. Particles are spaced further apart, moving faster than a solid
- 16. Scale used to show how acidic or basic a substance is
- 18. Type of paper that shows if a substance is acid or base only