Chemistry - Acids and Bases

1. Try this activity. What colour does cabbage juice indicator go with an acid and a base?
2. Watch the video on the projector, and explain WHY the coke dissolves the tooth:
3. What do you need to mix an acid with to make carbon dioxide?
4. Next lesson (in 2 weeks) we're going to make some rockets. Try this game, and say why you think rockets are thin and pointy shaped?