Unit 3: Changes in Matter Test Review

All matter is made up of smaller pieces of matter called ___

• space

• weight

• particles

• chemicals

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 materials

When a material dissolves, it ____

• mixes completely with another material.

• separates with a material it is mixed with.

• changes the state of matter it is in.

• expands into a larger piece of material.

Which of the following is true about all matter?

• All matter can be seen

• All matter has a fixed volume.

• All mater has weight.

• All of the above

As Mason plays with his dog in his backyard, he can tell that his neighbors are cooking food on an outdoor grill, even though he cannot see them. What explanation BEST tells why?

• Heat coming from the neighbors’ grill can be felt by Mason.

• Invisible particles of the food float through the air to reach Mason’s nose.

• Mason thinks he can see smoke rising from the neighbors’ backyard.

How should the students move to BEST model a liquid's motion?

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

• stay close together and move about slowly

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

If you want to separate the salt from salt water then you would ....

• let it sit and evaporate

• put it in the refridgerator

• put it in freezer

• pull out salt with tweezers

A ____ is a material where each part of it is made of the same type of particle.

• powder

• solution

• mixture

• grain

A mixture is ...

• sand

• salad

• lemonade

• all of the above

Which mixture can be separated back into substances?

• sugar water

• salt water

• wood

• all of the above