Chemical and Physical 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.

Front

Give an example of a physical change.

Back

An example of a physical change is an ice cube melting.

Front

What is a chemical change?

Back

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

Front

Give an example of a chemical change.

Back

An example of a chemical change is baking soda reacting with vinegar to produce carbon dioxide.

Front

What happens to the chemical composition of a substance during a physical change?

Back

The chemical composition of a substance remains the same during a physical change.

Front

What happens to the chemical composition of a substance during a chemical change?

Back

The chemical composition of a substance changes during a chemical change, resulting in new substances.

Front

Is breaking a glass a physical or chemical change?

Back

Breaking a glass is a physical change.

Front

What is an indicator of a chemical change?

Back

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

Front

What type of change is mixing food coloring in water?

Back

Mixing food coloring in water is a physical change.

Front

What is an example of a physical change involving food?

Back

Cutting carrots into pieces and mixing them in a salad is an example of a physical change.