Physical and Chemical Change Review

What are the changes that can happen to matter? (Choose all that are true.)

• Physical

• Chemical

• Photographic

• Material

• Concrete

A ​ (a)   change can change the physical ​ (b)   of a substance, such as size, shape, and form. However, it does not make a new ​ (c)   .

• properties
• physical
• substance

Which of these actions in the video showed that making clothes is a physical change? (Choose ALL that are true.)

• cutting

• sewing

• shaping

• melting

• cooking

What question can we ask to find out if the changes to water is a physical change?

• Can melted ice be refrozen?

• Is water vapor invisible?

• Does water help plants to live?

• Is there more water on the Earth than land?

Steph dissolved sugar in water. Through which of these processes could she proved that it is a physical change that can be reversed?

• evaporation

• condensation

• melting

• freezing

Which of these action words is NOT an example of physical changes?

• cutting

• shaping

• mixing

• dissolving

• cooking

A ​ (a)   change occurs when a ​ (b)   between two or more substances causes a new ​ (c)   to be formed.

• chemical
• reaction
• substance

Which 2 questions can we ask to determine if baking cookies is a chemical change?

• Do they give off an odor when they reach a certain temperature?

• Do they begin to change color as they cooks?

• Do the types of ingredient in them affect the change?

• Does the size of each cookie affect the type of change that occurs?

What are some action words that tell us a chemical change has occurred? (Choose ALL that are true.)

• melting

• burning

• rusting

• ripening

• digesting

Put each into the correct category.

Groups:

(a) Physical Change

,

(b) Chemical Change

• pizza baking

• fireworks exploding

• cutting paper

• metal rusting

• boiling water

• molding clay