It is difficult to clean things in water alone because substances like oil and grease do not dissolve in water. This is why we have to add detergents to the water. Detergents break down grease and oil into very tiny drops which then mix with the water and can be washed away.
Most detergents produce a lather or foam when they are shaken with water.
The aim of this experiment is to investigate a factor which might affect the amount of lather produced when detergents are shaken with water.
Factors Affecting Lathering of Soap – Pupil
