Across
- 6. when a compound is broken down into simpler substances
- 7. the part of the Earth at the very centre
- 10. the set of elements on the far right of the Periodic Table
- 11. a type of change involving different states
- 13. a substance that can't be broken down into other substances
- 15. reinforced concrete is an example of this type of material
Down
- 1. the movement of the sixth element around the planet
- 2. a material formed from combining many smaller molecules
- 3. a substance that neutralises acids
- 4. a substance in solution with a pH less than 7
- 5. the substances that exist at the end of a reaction
- 8. the chemical opposite of reduction
- 9. the process of a liquid turning into a solid
- 12. a supported prediction about an experiment
- 14. elements found on the left of the Periodic Table