Across
- 2. the solution or molten material in electrolysis
- 3. the negative electrode
- 7. aluminium ore
- 11. the metal extracted using a blast furnace
- 13. a molecule made up of more than one element
- 14. the simplest substance made from one type of atom.
- 15. the positive electrode
Down
- 1. splitting substances using electrolysis
- 4. makes a squeaky pop with a lit splint
- 5. the addition of oxygen to an element
- 6. extracts impurities in the blast furnace
- 8. the salt made by hydrochloric acid
- 9. the salt made by sulphuric acid
- 10. made up of electrons, protons and neutrons
- 12. relights a glowing splint