Across
- 2. an alloy of iron and carbon
- 4. causes damage
- 5. breaks with a snap
- 7. alkali
- 8. something that reflects light
- 11. a paper placed in a filter funnel and used to separate
- 12. the substances from which objects are made
- 13. skin
- 15. cannot transfer heat or electrical energy
- 17. able to dissolve or eat away other materials such as
- 19. a substance that is neither acid nor alkali, is at pH7
- 21. is attracted to a magnet
- 22. can transfer heat or electrical energy
Down
- 1. a substance that contains hydroxide particles;
- 3. can be drawn out into strands or wires
- 5. an alloy of copper and tin
- 6. a substance that catches fire easily
- 7. mixtures of metals
- 8. breaks into many pieces
- 9. a substance which contains hydrogen particles and
- 10. can easily be hammered into shape
- 14. a pH lower than 7;
- 16. rings like a bell
- 18. a substance that changes to a different colour in acid
- 20. a type of indicator