Physical and Chemical Changes Assessment

Front

What is a physical change?

Back

A physical change is a change of a substance that does not change its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that alters the chemical composition of a substance.

Front

Which process is an example of a chemical change?

Back

Burning wood is an example of a chemical change.

Front

Can a chemical change be reversed?

Back

No, a chemical change cannot be easily reversed.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What happens to the molecules during a physical change?

Back

The molecules may change their state or appearance but remain the same substance.

Front

What happens to the molecules during a chemical change?

Back

The molecules rearrange to form new substances with different properties.

Front

Is dissolving sugar in water a physical or chemical change?

Back

Dissolving sugar in water is a physical change.

Front

What is an indicator of a chemical change?

Back

An indicator of a chemical change can include color change, gas production, or temperature change.

Front

What is an example of a reversible physical change?

Back

Freezing and melting water is an example of a reversible physical change.