Chemical changes

Which of the following is evidence of a chemical change?

• increased volume

• color change

• increased mass

• dissolving

Tags

NGSS.MS-PS1-2

Which of the following is evidence of a chemical change?

• gas is produced

• color stays the same

• increase in volume

• change in physical state

Tags

NGSS.MS-PS1-2

An endothermic chemical reaction refers to

• when heat is given off

• when light is given off

• when heat is absorbed

• when light is absorbed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

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

• flammability

• color

• density

• melting point

Tags

NGSS.MS-PS1-2

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

• a glass of water freezing

• a puddle of water on the sidewalk evaporating on a hot sunny day

• Ice cream melting

• burning wood

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is formed when iron is exposed to water and/or oxygen over a long period of time?

• jewelry

• minerals

• a precipitate

• rust

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a solid substance that forms and separates during some chemical reactions?

• particulate

• precipitate

• dissolvent

• reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a physical change?

• mixing oil and vinegar

• baking a cake

• a banana ripening

• leaves changing color

Which of the following is a chemical change?

• boiling water

• dew forming

• dissolving sugar in water

• leaves changing color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Remember our foam gnomes lab? In this experiment all of the following were evidence of a chemical change EXCEPT...

• an increase in volume

• a gas was formed

• heat was given off

• an exothermic reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5