Aim
To observe diffusion in a liquid.
Equipment
-250 ml Beaker
-Water Hot and Cold
-Tweezers
-A crystal of potassium permanganate
-Straw
Method
-Half fill your 250 ml beaker with cold water.
-Place the 250 ml beaker on your workbench and allow to become settled.
-Using the tweezers, place a single crystal of potassium permanganate in the bottom centre of the beaker using a straw.
-Observe for 5 minutes
-Repeat the experiment using hot water.
