Red cabbage indicator

 Aim:

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

Research:

Method:

Equipment:

• Red cabbage
• Hydrochloric acid
• Soolium hydroxide
• Dropper
• Warm water
• Test tubes
• Beaker

Instructions

1. Get your equipment
2. Teacher will give you red cabbage.
3. put warm water in your beaker.
4. tear parts of your red cabbage.
5. put the pieces of the red cabbage in your beaker
6. mix gently to reveal the color purple in your beaker (the darker the better).
7. Now get your dropper and add 3 full drops in each test tube.
8. after that carefully get your acids and try make different colors.
   
   

Results:

Can you try make these colors?

Discussion:

1.An acid base is a