7.6A: Chemical Changes

All these are examples of a chemical change EXCEPT....

• Rusting metal

• Boiling water

• Burning paper

• Rotting food.

Tags

NGSS.MS-PS1-2

All of these are example of a physical change EXCEPT .....

• Melting butter

• Flattening a piece of metal

• Cutting paper

• Tarnishing silver vase

Tags

NGSS.MS-PS1-4

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

NGSS.MS-PS3-4

A change where one or more new substances are created.

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Photosynthesis is an example of a

• physical change
• chemical change

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-PS1-2

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

• physical
• chemical

Tags

NGSS.5-PS1-4

if there is a change in color, production of light, production of heat, production of gas, production of smell or formation of a new substance.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What does it mean when there is a physical change?

• Matter has change from one substance into another.

• Matter has change on the molecular level

• A new substance has been formed.

• Matter has changed size, shape or form.

Tags

NGSS.MS-PS1-4

A solid substance that forms when 2 liquid solutions are combined?

• Sublimation
• Precipitate
• Condensation
• Freezing

Tags

NGSS.MS-PS1-2