Blending the constituents
First of all, combine the turmeric and rubbing alcohol in the bowl. You may use a stirrer or shaker to have the two substances blended together perfectly.
The Baking Soda
In another glass, combine some baking soda with water. Make sure you do not end up combining more than the amount required in the experiment.
Combing the two
After preparing the two above-mentioned substances, pour a sufficient amount of the turmeric/alcohol combination into the glass containing water and baking soda and observe a change in color.
The first color change
Since turmeric/alcohol was a pH indicator so when added to basic solution of yellow color, the color changed to red.