Physical vs. Chemical Changes

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

A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?

• Texture
• Temperature
  
• Shape
•  Mass

Tags

NGSS.MS-PS1-4

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

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

Tags

NGSS.MS-PS1-2

Freezing Juice?

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-4

A change where one or more new substances are created.

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

Is digesting your food a physical or chemical change?

• Physical
• Chemical

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

Is melting iron a physical or chemical change?

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Is a car using fuel a physical or chemical change?

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

Is sour milk a physical or chemical change?

• Physical
• Chemical

Tags

NGSS.MS-PS1-2