Elementary Science Fair Projects – Make Your Own "Litmus" Paper And Use It
In today’s Elementary Science Fair Project we are going to make our own “Litmus” paper and then we are going to use it. Do you know what “Litmus” paper is and what it is used for? Yes, it is the paper used in chemical laboratories to test for acid or alkali, it changes color and that is how you can see whether a substance is acid or alkali. The litmus paper turns red-pink in acid and green in alkali. This is an easy and fun Elementary Science Fair Project. Because there is some boiling involved, this experiment should be done under adult supervision.
This is what you need to make your “Litmus” paper:
- Some grated fresh red cabbage
- Water, enough to fill your jar
- Paper towels, 2″ strips
- A wide-mouthed jar
- Other fruits, flowers and vegetables
How to do it:
- Boil the cabbage in the water for about 10 minutes.