Physical and Chemical Changes

Freezing Juice?

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Exploding Fireworks?

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS1-2

Melting a chocolate bar?

• Physical Change
• Chemical Change 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Rotting bananas?

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

Cutting your hair?

• Physical Change
• Chemical Change

Is sqeezing organges to make orange juice a phyical or chemcial change?

• physical
• chemical

Tags

NGSS.5-PS1-4

Which answer makes a correct statement?

• Physical change only changes the size.
• Physical change only changes the color.
• Physical changes begin and end with the same matter.
• Physical changes change the matter into something total different.

Tags

NGSS.5-PS1-4

A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?

• cutting a piece of paper
• folding a piece of paper
• tearing a piece of paper
• burning a piece of paper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A glass of hot water is sitting on a table. Which is true about the glass of hot water once a spoonful of salt has been completely dissolved in it? 

• It weighs more 
• It weighs less
• It weighs the same
• none of these

Mark is observing a burning candle. He notices the melted wax drips down the side of the candle and hardens again. The candle has _____. 

• formed a new substance
• undergone a physical change
• undergone a chemical change
• undergone a physical and chemical change

Tags

NGSS.5-PS1-4