Aim: To test the pH of a range of household chemicals.
Equipment: A variety of household chemicals, spotting title, red litmus paper, blue litmus paper,Universal indicator solution, safety glasses.
Method: Add a few drops of each chemical to a spot on your tile. If a substance is solid or powered you will need to mix it with a few drops of water before testing it.
Test the chemicals with litmus papers.
Test each chemical with a few drops of universal indicator.