Question

Classify the following change as physical or chemical:

Separating cream from milk.

Answer 1

Physical change:

• A physical change is a change in which no new substance is formed.
• A physical change is temporary and reversible.
• In a physical change, the chemical composition of the original substance is not altered.
• For example, drying of wet clothes, breaking of a glass tumbler, drying paints, etc.
• Separating cream from milk is a physical change.
• No chemical reaction happens during the centrifugation of milk cream.

Therefore, separating cream from milk is a physical change.