Chemical and Physical Changes

A change that results in the formation of new chemical substances

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Most chemical changes cannot be reversed.

• True

• False

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

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

Tags

NGSS.MS-PS1-2

A change where one or more new substances are created.

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Fizzing, foaming, and burning are all examples of

• Chemical change
• Physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is a result of a chemical change?

• A mixture
• A solution
• A new substance
• Melting or freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following indicates a chemical change?

• Change in state of matter
• Temperature change
• Change in size 
• Change in shape

Tags

NGSS.MS-PS1-2

Physical or Chemical Change?  Cutting an orange into wedges.

• Physical Change
• Chemical Change

Physical or Chemical Change?  Making a paper airplane.

• Physical Change
• Chemical Change

The following are examples of evidence of a chemical reaction....

• ice melting into a liquid

• condensation

• endothermic reaction

• change in color, production of gas bubbles

Tags

NGSS.MS-PS1-2