Home experiment 3

Today I will be showing you how to make litmus indicator. This special vegetable is quite rare in the supermarket and sometimes you have to wait till it's in season. The vegetable i'm talking about is - red cabbage. No, it's not red but purple in colour because of a pigment called flavin.

You need:
2-3 cabbage LEAVES
1 pot
water
1 container

Steps:
1) wash the cabbage leaves and place them neatly into the pot.
2) Fill the pot with water until it just covers the leaves

3) Boil it for about 10 minutes or till the water turns a rich purple colour

4) Let it cool and pour the liquid into a container and use it when needed.

Note:
-When the sample you're trying on is an acid, the indicator turns pink.
-When the sample you're trying on is an alkali, the indicator turns blur-green.

Tried and Tested:
I tried the indicator with a little bit of lime juice and guess what colour it turns. Yes, pink!!!