Across
- 4. What are the numbers called that measure whether a substance is acidic or basic?
- 5. What is the Ph in your mouth?
- 6. What is the opposite of Bases?
- 7. Who is the coolest fairy ever?
- 10. acid What acid is in vinegar
- 11. acid What acid is in soft drink?
- 12. What can cause corrosion on buildings statues etc?
- 15. What is the Ph inyour stomach?
- 16. What are bases that dissolve in water?
- 19. What slimy substance prevents acid touching the walls of your stomach?
Down
- 1. What does a Hydrogen ion and a hydroxide ion cause?
- 2. What can cause water to become green and block pool filters?
- 3. What is the opposites of acids?
- 4. What is the mixture of food, bacteria, acids and saliva called?
- 8. What tells you if a substance is an acid or a base?
- 9. What substance is nuetral?
- 13. What do you add to soil if it is too acidic?
- 14. acid What acid is in citrus food?
- 17. acid What acid is in yoghurt?
- 18. What is the purple dye called that comes from lichens which grow on rocks?