Matter - classification of and changes in

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

• physical properties
• chemical properties
• liquid properties
• real properties

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

What characteristic defines all chemical changes?

• There is a change of state.
• Electricity is produced.
• A new material is formed.
• Bubbles are produced. 

Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Photosynthesis is an example of a

• physical change
• chemical change

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

When you bake cookie dough, this is a

• physical change
• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Caleb measures the mass of a cup of water.  He puts it in the freezer over night.  When Caleb measures the mass again...

• The mass will have increased
• The mass has decreased
• The mass stays the same
• You can't measure the mass of ice

clouds form in the sky

• physical change
• chemical change

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

a copper penny turning greenish after a few years.

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2