Physical and Chemical changes

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a chemical reaction and changes the composition of the original substance. Examples include rusting, burning, and baking.

Front

Is melting ice cream a physical or chemical change?

Back

Melting ice cream is a physical change.

Front

Is metal rusting a physical or chemical change?

Back

Metal rusting is a chemical change.

Front

What type of change occurs when fireworks explode?

Back

The explosion of fireworks is a chemical change.

Front

Is baking cookies a physical or chemical change?

Back

Baking cookies is a chemical change.

Front

What happens to a banana when it rots?

Back

When a banana rots, it undergoes a chemical change.

Front

What are some indicators of a chemical change?

Back

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

Front

What is an example of a physical change?

Back

An example of a physical change is the melting of ice.

Front

What is an example of a chemical change?

Back

An example of a chemical change is the burning of wood.