Red Cabbage Indicator

 Aim: 

I want to find out how red cabbage can tell if liquid is an acid or a base.

Research:

Method:

Equipment

• Red cabbage
• Acid
• Base
• Testing tubes
• Hot water
• Doper
• beaker

Instructions

1. Get all your equipment
2. Cut your cabbage into little pieces
3. Cut your cabbage in the hot water
4. Mix it around till the water turns a dark purple
5. Get 3 drops of the purple water in each tube
6. Add base and acid to your purple water
7. Mix them together and make your own colours