Unit 3 Exam

All matter is made up of smaller pieces of matter called

• salt

• molecules

• solution

• particles

Tags

NGSS.MS-PS1-1

How are the particles in each state of matter different?

• The particles are different sizes

• The particles are arranged differently

• The particles are different materials

• The particles are different colors

Tags

NGSS.MS-PS1-4

When a material dissolves it,

• separates with a material it is mixed with

• changes the state of matter it is in

• mixes completely with another material

• is completely gone

Which of the following is true about all matter?

• all matter has weight

• all matter can be seen

• all matter has fixed volume

• all matter has fixed shape

As Mia practices kicking the soccer ball in her backyard, she can tell her neighbors are cooking food on the grill. Even though she cannot see it, what explanation best tells why?

• heat coming from the neighbor's grill can be felt

• the air that touched the food is carried by the wind to her nose

• invisible particles of the food float through the air to reach her nose

Tags

NGSS.MS-ESS2-5

How would a fan cause a hot air balloon to inflate?

• Invisible particles of the fan push against the inside of the balloon as the fan is in motion

• The fan heats the air inside the balloon, so the balloon becomes lighter than the air inside it

• The fan pushes invisible air particles into the balloon that push against the inside of the balloon

• The weight of the fan causes the balloon to inflate

Carly's Dad mixes a spoonful of sugar into a hot cup of coffee. What can Carly predict will happen to the sugar?

• The solid sugar particles will mix with the liquid coffee particles until it dissolves. The solution will resemble coffee.

• The liquid sugar particles will mix with the solid coffee particles until they dissolve. The solution will resemble sugar.

• Solid sugar particles will mix with the gaseous coffee particles until they dissolve.

• Solid sugar particles will mix with the liquid coffee particles until they dissolve. The solution will resemble sugar.

Tags

NGSS.MS-PS1-2

Ms. Ryan's class is trying to model with their bodies how water particles move in a bowl of liquid water. How should the students move to BEST model this motion?

• stay close together and move about slowly

• walk past each other slowly while some students stand in place

• run around and remain as far apart from each other as possible

• sit down on the ground, holding hands tightly, and try not to move

Tags

NGSS.MS-PS1-4

Which is the best explanation of a solid?

• Particles are attached and vibrate next to each other.

• Particles bounce off one another

• Particles move about slowly

• None of the above

Which is the best explanation of a liquid?

• a brick

• Particles bounce off each other

• Particles move about slowly and can touch

• None of the above