Physical and Chemical Changes

Which of the following tells you that a chemical change may have occurred?

• Change Shape
• Melting
• Vaporizing
• Change in color

Tags

NGSS.MS-PS1-2

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is milk going sour a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

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

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Freezing Juice?

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A mixture is the result of a physical change because...

• The parts can be separated
• A new substance is made
• There is a chemical reaction
• One part of the mixture disappears

Exploding Fireworks?

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS1-2

If enough heat is taken away from a container of water, what will happen to the water?

• It will begin to boil.
• It will become a solid.
• It will turn into a gas.
• It will increase in weight.

Tags

NGSS.MS-PS1-4