Physical and Chemical Changes/Properties

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

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Front

Give an example of a physical change.

Back

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

Front

Give an example of a chemical change.

Back

An example of a chemical change is the rusting of iron.

Front

What are some indicators of a chemical change?

Back

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

Front

Is the formation of the Grand Canyon a physical or chemical change?

Back

The formation of the Grand Canyon is a physical change.

Front

Is making orange juice a physical or chemical change?

Back

Making orange juice is a physical change.

Front

What does a change in temperature indicate?

Back

A change in temperature can indicate that a chemical change has occurred.

Front

Is sharpening a pencil a physical or chemical change?

Back

Sharpening a pencil is a physical change.

Front

Which of the following is NOT a clue that a chemical reaction has taken place?

Back

Changing size is NOT a clue that a chemical reaction has taken place.