We learned about pH levels and conducted an experiment to find out which liquids are acids and which are bases. We used cabbage juice as our indicator. The liquids we tested were: milk, water, soapy water, baking soda in water, lemon juice, orange juice, and vinegar.
Here’s a picture of the results:
From left to right: soapy water, orange juice, milk, lemon juice, water, baking soda and water, vinegar.
The acids turned a pink/red color (orange juice, lemon juice, vinegar)
The bases turned a blue color (soapy water, milk, baking soda and water)
And water is neutral (it didn’t really change color).