Physical and Chemical Changes

A physical change...

• changes the physical properties of an object, but does not create a new substance.

• creates a new substance and cannot be undone.

Tags

NGSS.MS-PS1-4

A chemical change

• changes the physical properties of an object, but does not create a new substance.

• creates a new substance and cannot be undone.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a sign that a chemical reaction (or change) has occurred?

• change in shape

• melting

• formation of a gas

• dissolving

Tags

NGSS.MS-PS1-2

Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• crumpled paper

• dissolving sugar in water

• freezing water

• burning a marshmallow

Tags

NGSS.MS-PS1-2

Kim puts an ice cube in a beaker and it melts. This is a good example of:

• a physical change.
• a chemical change.
• an experiment.
• an analysis.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which of the following is an example of a chemical change?

• crumpled paper

• pencil sharpening

• freezing water

• browning apple

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A change where one or more new substances are created.

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

Fireworks

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5