Across
- 5. A natural indicator made from a plant (8 letters)
- 6. The taste of bases
- 8. The taste of acids
- 9. An example of a base
- 10. A natural indicator made from lichens
Down
- 1. The process of an acid reacting with a base
- 2. The name of a strong acid found in hydrochloric acid
- 3. A substance that turns blue litmus paper red (4 letters)
- 4. An example of an acid (7 letters)
- 7. A substance that turns red litmus paper blue