Chemical and Physical Changes

You put a shallow glass of water with a 10 tablespoon of salt in the hot, summer sun. After 30 days, you return to find what in the cup?

• Only salt.

• Only water because the salt dissolved into the water.

• Nothing was left in the cup.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Heating a solid until it changes color and produces an odor, and noting the solid cannot be changed back is an example of

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

Which of the following is a Physical Property 

• Toxicity
• Flammability
• Malleability
• Reactivity

Water that is heated and changed to steam is a 

• Physical change
• Chemical change

Tags

NGSS.MS-PS1-4

Glass breaking s an example of a

• Chemical change
• Physical change

Fireworks exploding is an example of a 

• Physical change
• Chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following would be a physical change?

• slicing bread
• baking bread
• baking a cake
• rotting food

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

• melting chocolate
• crushing a soda can
• cutting paper
• wood burning

Baking soda and vinegar combine to make carbon dioxide

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Physical or Chemical Change?  Logs burning in a campfire.

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5