Changes in States of Matter Review

On very warm days, Abby noticed that a metal door fits tightly in its frame and is tough to open. On very cold days, however, Abby noticed the door opens easily. Which choice best explains these differences.

• changing temperatures cause atoms in the metal to become larger or smaller

• cold temperatures cause atoms in the metal to merge together and warm daily temperatures cause atoms in the metal to split apart and become gas

• temperature differences effect the molecular energy of atoms in the metal and they 'slow down' and move closer together or 'speed up' and move farther apart

• the door freezes on cold days and is opens freely on warm days

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A substance changing from a gas to a liquid is an example of...

• vaporization

• condensation

• precipitation

• melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A substance that has a temperature below its melting point would be in . . .

• a gaseous state of matter

• a liquid state of matter

• a solid state of matter

• a plasma state of matter

Tags

NGSS.MS-PS1-4

When water molecules slow down and move closer together ...

• the water separates into hydrogen and oxygen.

• the water turns into liquid nitrogen.

• the water turns into water vapor.

• the water turns into ice.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Examine the table and models. Which model best represents Xenon at room temperature?

• model A

• model B

• model C

• all models work equally well

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Examine the table. At which temperature would the element radon be a solid?

• 50 degrees celsius

• -50 degrees celsius

• -65 degrees celsius

• -83 degrees celsius

Tags

NGSS.MS-PS1-4

The liquid nitrogen inside the cup makes the temperature of the cup so cold that oxygen in air forms as droplets on the outside of the cup. The oxygen that formed as liquid is an example of:

• vaporization

• freezing

• condensation

• melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

The molecules of a substance slow down when . . .

• energy is added.

• energy is taken away.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Sophia filled a small cup with water and then placed it in the freezer. Over the next few minutes, the liquid water began to turn to ice. As this was happening, the water molecules in the cup . . .

• gained energy

• gained mass

• lost energy

• lost mass

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The temperature at which a liquid turns into a solid is its . . .

• melting point

• boiling point

• condensation point

• freezing point

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4