The melting of ice cream is a physical change. Liquid ice-cream solidifies again on freezing without change in chemical properties.
Physical change and Chemical change
A change in which a substance changes its physical properties is called a physical change.
- A physical change is generally reversible.
- In such a change, no new substance is formed.
- Examples of physical changes are boiling, melting, freezing, and shredding.
A change in which one or more new substances are formed is called a chemical change.
- A chemical change is also called a chemical reaction.
- All new substances are formed as a result of chemical changes.
- For example, digestion of food in our body, ripening of fruits, fermentation of grapes, etc.