Physical vs Chemical

A change in which NEW substances are formed.

• Chemical change

• Physical change

• Casual change

• Formal change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Ripping up paper ...

• Chemical Change

• Physical Change

An explosion occurs ...

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens when a substance undergoes a physical change?

• Some physical properties change, but the substance keeps its identity.

• No physical properties change, and the substance keeps its identity.

• Some physical properties change, and the substance changes its identity.

• No physical properties change, but the substance changes its identity.

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

• Water freezing into ice.

• A piece of wood burning.

• A toy car rusting.

• Zinc producing hydrogen gas when mixed with water.

What does it mean when there is a physical change?

• Matter has changed from one substance into another.

• Matter has changed on the molecular level.

• A new substance has been formed.

• Matter has changed size, shape or form.

What is an example of a chemical change that happens inside your body?

• Food being broken down by enzymes in your stomach

• Food being broken into small pieces by your teeth

• Food being moved from your esophagus into your stomach

• Water being absorbed inside your large intestine

What can you infer about the changes that formed the Grand Canyon?

• They were molecular changes

• They were chemical changes

• They were physical changes

• They were changes in weather

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which change can be easily be reversed?

• Chemical Change

• Physical Change

• Both a physical and chemical change

• Neither a physical or chemical change

Which is an example of a physical change?

• Metal rusting

• Silver tarnishing

• Water boiling

• Paper burning

Tags

NGSS.MS-PS1-4