Chemical and Physical Changes in Matter

Which of the following are examples of a physical change in matter?

• cutting paper

• burning wood

• fireworks exploding

• baking soda reacting with vinegar

How could the components of a saltwater solution be separated?

• by filtering out the salt

• by boiling the solution, leaving the salt behind

• by pouring it into another container

• by increasing the pressure

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is a physical change?

• light from a glow stick

• burning wood

• rusting metal on a car

• crushing a soda can

Bob heated ice until it became a liquid. Which term identifies this change?

• Boiling

• Condensing

• Freezing

• Melting

Tags

NGSS.MS-PS1-4

What are the three states of matter?

• Volume, shape, and mass

• Liquid, volume, and gas

• Liquid, solid, and gas

• Solid, shape and Gas

How do we know a mixture of flour and rice is only a physical change?

• It will release a new power into the air

• The mixture will give off a new smell

• The flour and rice can be sifted so it becomes separate again

• If you add water to it the mixture becomes sticky

Billy forms a clay figure of a frog in art class. Which of the following occurred when Billy created the clay figure?

• He made a new substance from the clay

• He physically changed the modeling clay

• He created new atoms in the modeling clay

• He changed the chemical properties of the clay

Which of the following is a chemical change?

• Salt dissolving in water

• Popsicles freezing

• Wood burning

• Shattering a glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If you run a magnet through a beaker of water, iron filings, and salt mixed together, what will be left behind in the beaker?

• only water molecules

• only salt molecules

• a solution of water and salt molecules

• only the iron filings

What will happen to water puddles outside if the temperature continues to go up throughout the day?

• The liquid water will evaporate into a gas

• The liquid water will freeze into a solid

• The gas will melt into liquid water

• The solid will harden into a gas

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4