A chemical change is a change that results in the formation of new substances with different properties.

A physical change is a change that affects one or more physical properties of a substance without changing its chemical composition.

The spoiling of milk is an example of a chemical change.

Melting ice is an example of a physical change.

In a chemical change, the original substances are transformed into new substances.

In a physical change, the original substances remain the same, but their form or appearance may change.

Signs of a chemical change include color change, gas production, and the formation of a precipitate.

Boiling water is an example of a physical change.

The flame test is used to identify the presence of certain gases, such as hydrogen.

Mixing air into egg whites is a physical change.