Changes of Matter

Owen molds play-doh during science class. What is he changing about the play-doh?

• the matter

• the shape

• the color

• the texture

Some materials can stretch. Which of the following objects can stretch without breaking?

• glass

• paper

• pencil

• pop it

Solid matter can change into a liquid. Which of these is most like melting a lemon popsicle into lemonade?

• Using soap and water

• Pouring syrup on pancakes

• Painting the wall blue

• Putting butter on a hot bagel

Materials can be changed in different ways. What is one change that changes the temperature of a material?

• cutting

• freezing

• crumbling

• stretching

DanTavius folded a piece of paper. What did he change about the paper?

• the temperature

• the matter

• the shape

• the color

Sam uses a knife to cut up an apple. He writes down what he finds out. What is an observation he could have made?

• The apple changed shape

• The apple changed temperature

• The apple changed from a solid to a liquid.

• The apple tasted bad.

Liquan wants to change milk into ice cream. How can he do this?

• freeze it

• heat it

• mold it

• melt it

Juan has a hose attached to the wall near his garden. He has noticed that the sidewalk underneath the hose has started to turn green and slimy. What question might a scientist raise about the changes Juan noticed?

• Should Juan clean the sidewalk?

• Does the sidewalk look better when it’s green or gray?

• Why is the sidewalk only green and slimy under the hose?

• Should Juan buy a new hose?

Paola made observations about whether a paperclip, a cookie, and a marker changed shape when she tried to crumble them. Which of the following would be an observation Paola made?

• The paperclip crumbled and turned into dust.

• The cookie stayed the same shape.

• The marker changed color.

• The cookie changed shape.

Fernando planted a tomato plant in his garden. He said it has grown 3 inches. How could Fernando know this?

• He made it up.

• He measured the plant when he planted it.

• He measured it every week.

• He guessed how tall the plant is.