Physical and Chemical Changes Flashcard Review

Front

What does it mean when there is a physical change?

Back

Matter has changed size, shape or form.

Front

When solids become liquids and liquids become gases, what happens to energy?

Back

Energy is gained.

Front

What can you infer about the changes that formed the Grand Canyon?

Back

They were physical changes.

Front

Which of the following is a sign that a chemical reaction has occurred?

Back

Formation of a gas.

Front

Define a Chemical Property.

Back

A property or behavior of a substance which undergoes a chemical change or reaction.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance.

Front

Give an example of a physical change.

Back

Melting ice into water.

Front

What is a chemical change?

Back

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

Front

Give an example of a chemical change.

Back

Burning wood.

Front

What is the difference between a physical change and a chemical change?

Back

Physical changes do not create new substances, while chemical changes do.