Physical vs. Chemical change

what is the definition of physical change?

• any change that results in the formation of new chemical substances. 
• rusting
• changes affecting the form of a chemical substance, but not its chemical composition.
• any property that is measurable, whose value describes a state of a physical system

what is burning?

• physical change
• physical property
• chemical change
• chemical property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

which one is a chemical property?

• odor
• combustibility
• solubility
• all of the above

Tags

NGSS.MS-PS1-2

what is condensing?

• physical property
• chemical property
• chemical change
• physical change

Tags

NGSS.MS-PS1-4

One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

• evaporation; chemical change
• condensation; physical change 
• evaporation; physical change
• condensation; chemical change

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4

Photosynthesis is an example of a

• physical change
• chemical change

Tags

NGSS.MS-LS1-7

NGSS.MS-LS1-6

NGSS.MS-LS2-3

When you break a cracker into pieces it is a 

• Chemical change
• Physical change
• Chemical Weathering
• Physical Weathering

Tags

NGSS.MS-PS1-2

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

What is the definition of chemical change?

• any change that results in the formation of new chemical substances. 
• changing clothes
• matter cannot be created or destroyed, only change form
• changes affecting the form of a chemical substance, but not its chemical composition.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5