Physical & Chemical Changes Lesson

Multiple Choice

Which of the following is a characteristic of a physical change?

• A new substance is formed

• The change is irreversible

• No new substance is formed

• Energy is always released

Multiple Select

Which of the following are characteristics of physical changes?

• No new substance is formed

• Often reversible

• Large energy changes occur

• Changes in size, shape, or state

Multiple Choice

Which of the following is NOT a characteristic of chemical changes?

• New substances are formed

• Usually reversible

• Can produce gas, heat, light, or a solid

• Large energy changes occur

Multiple Choice

What is the main difference between physical and chemical changes in matter?

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

• Physical changes affect only appearance or state, chemical changes create new substances.

• Physical changes are always irreversible, chemical changes are always reversible.

• Physical changes only happen to solids, chemical changes only happen to liquids.

Multiple Choice

Which of the following best describes a chemical change?

• A new substance is formed and the change is not reversible.

• No new substance is formed and the change is reversible.

• Energy change is small and the change is reversible.

• Melting ice is an example of a chemical change.

Open Ended

Describe two ways you can tell a chemical change has occurred, based on the characteristics listed.

Multiple Choice

Which of the following best describes a physical change?

• A change that forms a new substance

• A change that is irreversible

• A change where no new substance is formed

• A change that always involves heat

Open Ended

Reflecting on today's lesson, what is one example of a physical change and one example of a chemical change you observed or learned about?