take a white paper and soak it in turmeric solution , take out the paper and dry it in the sun . take some soap solution ina small bowl . with the help of a cotton bud make any drawings of your choice on the dried turmeric paper , using soap solution as ink . Record your observation.

You will observe that the drawing you make on the turmeric paper is of the colour red. This happens because turmeric is an indicator. Soap is a base. When turmeric reacts with a base that particular part turns red. Thus the drawing you create is now of red colour. 

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good question 
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