Testing Ph (Science)

The aim of this experiment is to test the PH range of household chemicals.


Equipment: A variety of household chemicals, Spotting tile, Red litmus paper, Blue litmus paper, Universal indicator solution and safety glasses.


Method: Add a few drops of each chemical to a spot on your spotting tile is a substance is solid or powdered you will need to add a few drops of water before before testing it.
Test the chemicals with litmus papers.
Test each chemical with a few drops of universal indicator.


This is our table of results:

Chemical being tested	Colour in blue litmus	Colour in red litmus	Colour in universal indicator
Easy off bam	Dark blue	Dark blue	Dark purple
Dettol	Red/pink	Red	Yellow
Pledge	Blue	Red	Yellow
Morning fresh	Blue	Purple	Green
Active fresh	Red	Red	Yellow

Universal indicator
The universal indicator shows us how strongly acidic or alkaline the solution is. Universal indicator has many different colour changes, from red for strong acids to dark purple for strong bases,In the middle neutral PH 7 is indicated by green.
Litmus indicator
Litmus indicator solution turns red in acidic solutions and blue in alkaline solutions. Litmus also comes in paper form. Blue litmus paper will turn red in an acidic solution and remain blue when added to an alkali solution. Litmus does not tell you how strong the solution is.