Physical and Chemical Changes Test Review!

You are using your science textbook to document an investigation which focuses on the effects of air and water on steel. You go outside and observe that our steel wool sponge has more rust than it did on Friday. Which scientific procedure will you most likely complete after observing the steel wool sponge?

• Put a steel wool sponge at a different location

• Record your observation in your science text book

• Tell Lindy about your investigation

• Talk to Mrs. Lopez about the sponge on the fence

Which change to an object best shows a chemical change?

• Change in size

• Change in smell

• Change of volume

• Change in color

Tags

NGSS.MS-PS1-2

Bernardo was home when the power went out. He walked to the kitchen to get a candle and made plates crash and break. He lit a candle with a lighter to get the candle to burn. He used the light to help find his way to his bedroom, where he laid on his bed and went to sleep. Which of these was a chemical change?

• Burning the candle

• Breaking the plate

• Going to sleep

• Walking to the kitchen

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Bella left her bike outside during a rainstorm for 3 days. When the rainstorm was done she noticed rust on her bike. What happened?

• The bike went under a physical change

• Nothing! The bike is still cool to ride

• It looks ugly now

• The bike went under a chemical change

Tags

NGSS.MS-PS1-2

Select ALL changes that are a CHEMICAL change.

• Crushing a can

• Fireworks

• Burning firewood

• Chopping wood

• Baking Ms. Roman cupcakes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Ms. Paolozzi wanted to see what would happen if she put lemonade mix in a pot of water and boiled the water. When the water evaporated, there was lemonade mix at the bottom of the pot. What type of change is this?

• Chemical

• Physical

Tags

NGSS.MS-PS1-4

Select ALL of the PHYSICAL changes

• Rusty nail

• Breaking a glass

• Crumbling a paper

• banana rotting

• chopping wood

During the natural cycle of life that takes place in all ecosystems, plants and animals die. What happens when they die?

• The body of the organism undergoes a physical change and changes into a new kind of organism.

• The body of the organism undergoes a chemical change, but will remain the same.

• The body of the organism undergoes a physical change, and changes into a gas to become part of the air.

• The body of the organism undergoes a chemical change and changes into a new material and is recycled back into the ecosystem.

Tags

NGSS.MS-LS2-3

Gabriel had a birthday party. There were so many presents, balloons, and of course cake! At the end of the party, Gabriel noticed that his balloons had lost some air. What happened to the balloons?

• Physical Change- change in size

• Chemical Change- change in color

• Physical Change- change of state

• Chemical Change- change of substance

When a plant dies it changes into a new material. What is this process called?

• Rusting

• Chopping

• Decaying

• Condensation