Chemical Reactions vs Physical Changes

Photosynthesis is an example of a

• physical change

• chemical change

Tags

NGSS.MS-LS1-6

Digesting your food is an example of 

• chemical change

• physical change

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is an example of a chemical reaction?

• paper cut into small pieces

• chocolate melting in a pan

• flour and sugar mixed in a bowl

• cookies baking in an oven

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

mixing lemon juice with milk

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

roasting a marshmallow

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties

• chemical properties

Tags

NGSS.MS-PS1-2

A property of matter that describes a substance's ability to participate in chemical reactions

• Chemical Property

• Physical Property

• Government Property

• Intellectual Property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Determine whether the following description is a physical or chemical property:

reacts with air

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

Determine whether the following description is a physical or chemical property:

reacts with water

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

Which of Mark’s observations would show that a burning candle is a chemical reaction?

• Black smoke is given off; hot gases are rising.

• The wax starts to melt.

• The candle is white and made of wax and a wick.

• Time passes one minute at a time.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4