Matter Unit Review 22-23

There are 2 cups. The water in the brown cup is 10 degrees Celsius. The water in the green cup is 30 degrees Celsius. What will happen if you put the cups next to each other?

• Heat will flow from the brown cup to the green cup, and the particles in the brown cup will slow down.

• Heat will flow from the green cup to the brown cup, and the particles in the brown cup will slow down.

• Heat will flow from the green cup to the brown cup, and the particles in the brown cup will speed up.

• Heat will flow from the brown cup to the green cup, and the particles in the brown cup will speed up.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which state of matter is substance 1?

• gas

• liquid

• plasma

• solid

Tags

NGSS.MS-PS1-4

The diagram shows molecules when they are cold compared to when they are hot. Which statement describes this image?

• The particles in the cold water move more quickly.

• The particles in the cold water move more slowly.

• The particles in the cold water move more freely.

• The particles in the cold water do not move at all.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement describes a property of water?

• It is less dense as a solid than as a gas.

• It is less dense as a solid than as a liquid.

• It is more dense as a gas than as a liquid.

• It is more dense as a solid than as a liquid.

You have a balloon. If the temperature of the balloon suddenly decreased, how would the balloon change?

• The mass of the balloon would increase.

• The mass of the balloon would decrease.

• The volume of the balloon would increase.

• The volume of the balloon would decrease.

Answer explanation

When you have a balloon and it gets colder, it will shrink.

This means the volume is decreasing.

Tags

NGSS.MS-PS1-4

A student placed equal amounts of 4 liquids into the cylinder. Which layer is the least dense?

• oil

• water

• syrup

• dish soap

Answer explanation

Remember, if something is less dense it will float on top!

Which item is denser than liquid water?

• metal fork

• plastic cup

• paper plate

• wooden spoon

Answer explanation

If something is more dense it will sink.

Imagine you are putting each of these items in a bucket of water. What would happen?

Which properties are not determined by the amount of a substance?

Hint: These will stay the same, no matter how much of something you have.

• weight and pH

• melting and boiling points

• density and mass

• volume and solubility

Answer explanation

Volume, weight, and mass will all change depending on how much of something you have.

Which property is the same for a 50mL sample of liquid water and a 100mL sample of liquid water?

• boiling point

• volume

• mass

• weight

Which statement describes the atoms of an element?

• They have different sizes and shapes.

• They have mass and volume.

• They can be seen with a magnifying glass.

• They are weightless.