Physical and Chemical Changes

Freezing Juice?

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

Exploding Fireworks?

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Melting a chocolate bar?

• Physical Change
• Chemical Change 

Tags

NGSS.MS-PS1-2

Cutting your hair?

• Physical Change
• Chemical Change

Is spoiling food a physical or chemical change?

• phyiscal
• chemical

Tags

NGSS.MS-PS1-2

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.

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

A chemical change may involve

• Evolution of gas

• Change in temperature

• Change in colour

• All of the above

Tags

NGSS.MS-PS1-2

Which process is an example of a physical change?

• Ice melting

• Milk souring

• metal rusting

• wood burning

Tags

NGSS.MS-PS1-4

Which process is an example of a physical change?

• Cutting Carrots into pieces and mixed in a salad

• A peanut butter and jelly sandwich being digested

• Sodium metal and water combining to form a compound and a gas

• Sodium metal and chlorine gas combined to form table salt