Physical and Chemical Changes

Which of the following describes ONLY a physical change?

• striking a match and lighting a fire

• roasting a marshmallow and placing it on a piece of chocolate

• putting a marshmallow on a stick and toasting the marshmallow

• tearing open a graham cracker package and breaking a cracker in half

If enough heat is taken away from a container of water, what will happen to the water?

• It will begin to boil

• It will become a solid

• It will turn into a gas

• It will increase in weight

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is an example of a chemical change?

• paper being burned

• metal being melted

• a board being cut in half

• water being boiled

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens when a piece of wood burns?

• A physical change takes place

• A chemical change takes place

• the wood loses its gravity

• the wood loses its inertia

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Kim puts an ice cube in a beaker and it melts. This is a good example of:

• a physical change

• a chemical change

• an experiment

• an analysis

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Vinegar is an acid that bubbles when it interacts with calcite. Which mineral contains calcite?

• limestone

• sandstone

• granite

• gneiss

Tags

NGSS.MS-PS1-2

An example of a liquid turning into a gas is

• a chocolate bar melting

• an ice cream cone dripping

• a stick of butter getting warm

• steam escaping from a cup of hot chocolate

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happens when water boils?

• the solid water becomes a liquid

• the liquid water becomes a solid

• the liquid water becomes a gas

• water vapor becomes liquid water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

if you dissolved a lot of salt in some water in a large flat dish and put the dish in bright sunlight on a hot day, what would be left in the dish after a long time?

• dry salt

• water with no salt

• the same salty water as before

• nothing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-ESS2-4

William put a sugar cube in a cup of hot water. After a period of time, what happened to the sugar cube?

• it dissolved

• it stayed at the bottom of the cup

• it evaporated

• it changed color

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2