Properties and Changes

A copper penny turning greenish after a few years is an example of a ---

• chemical change.

• physical change.

A change in which new substances are formed is called a _____ change.

• chemical

• physical

• state of matter

Which of the following is not an example of chemical change?

• sour milk

• burning wood

• breaking a pencil

• rust

Which of the following is a physical change?

• Getting a haircut

• Rusty metal

• Sour milk

• A compound

Which of the following is not an example of a physical change?

• crumpled paper

• pencil sharpening

• shrunken clothing

• sour milk

What kind of change is melting butter for popcorn?

• Chemical

• Physical

What kind of change is a rusting bicycle?

• Chemical

• Physical

What kind of change is ripping up paper?

• Chemical

• Physical

What kind of change is a change in phase?

• Chemical

• Physical

When bubbles form after two or more substances are combined, this is a sign of a _____ change.

• Chemical

• Physical