Science - Green and Rainbow Challenges

Green Challenge

Method:

Take a test tube and fill with "two fingers" of the base. Then see the teacher for three drops of universal indicator. Now add the acid.

Observations:

1. When we added the universal indicator to the base the colour changed to blue.

2. When the solution was neutralized the colour changed to green.

Rainbow Challenge

Method:

Take a test tube, the base, the acid, and the universal indicator, and create the best rainbow in a test tube you can manage.