Test 4 Part 1 Review

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

• change in shape

• melting

• formation of a gas

Freezing Juice?

• Physical Change
• Chemical Change

A change where one or more new substances are created.

• Physical Change 
• Chemical Change 

Change in color is a physical change.

• True
• False

When you break a cracker into pieces it is a...

• Chemical change
• Physical change

what is the definition of physical change?

• any change that results in the formation of new chemical substances. 
• rusting
• changes affecting the form of a chemical substance, but not its chemical composition.
• any property that is measurable, whose value describes a state of a physical system

what is burning?

• physical change
• physical property
• chemical change
• chemical property

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Which is a chemical change?

• freezing fruit juice
• slicing a potato
• boiling water
• copper metal turning green

Is moldy cheese a chemical or physical change?

• chemical
• physical