Universal indicator experiment

This worksheet helps to give structure and organisation to a pH testing experiment. You may have small samples of liquid in test tubes or dropping tiles and add drops of indicator or pH paper. Try to get a range of pH values. I usually use these liquids:
Strong acids from hydrochloric, sulphuric and nitric. Weak acids from vinegar, lemon juice, orange juice, red or white wine on the turn. Neutral or thereabouts is water and distilled water. Limewater, sodium bicarbonate solution, soap/detergent solution and possibly milk for weak alkali. Sodium hydroxide and potassium hydroxide for strong alkali, whilst ammonia solution is perhaps borderline weak strong alkali.