Properties and Change

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties

Which type of property is the ability to conduct electricity?

• physical property
• chemical property

Properties that can be observed without changing the identity of the substance.

• Physical
• Chemical

Example for physical property

• odor
• burns in air
• reacts with water to create hydrogen gas
• rust

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

• change in shape
• melting
• formation of a gas
• dissolving

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

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

A change where one or more new substances are created.

• Physical Change 
• Chemical Change 

Fizzing, foaming, and burning are all examples of

• Chemical change
• Physical change

Change in density is a physical change.

• True
• False

Rust on an iron bar is an example of chemical change.

• True 
• False