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budreaux
budreaux asks:
Q:

why does pH indicators and acid change solution colors

In Topics: School and Academics, Helping my child with science
> 60 days ago

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Answers (1)

hlevitan
hlevitan , Teacher writes:
Budreaux,

pH indicators change color depending on the acidity of the substance in which they are placed.  The pH scale ranges from 0 to 14.  A substance with a pH of 7 is neutral.  A pH less than 7 is acidic, and a pH greater than 7 is basic.  

The science fair project “Testing pH Levels in Everyday Foods and Household Products” explains pH and acidity. It shows an image of the pH scale and examples of how to test the pH of everyday household items.

“Testing pH Levels in Everyday Foods and Household Products”
http://www.education.com/science-fair/article/testing-ph-levels/

I hope this answers your question.

If you are doing a science fair project, you should check out http://www.education.com/science-fair/all-grades/ for science fair project ideas and science fair help.

Best wishes,
Hayley
> 60 days ago

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