Unit 4 Phase Change - old

If a substance has molecules moving in place, undergoes a phase change, and now has molecules moving around each other it has changed from a.......

• solid to a gas

• gas to a liquid

• solid to liquid

• liquid to a solid

Tags

NGSS.MS-PS1-4

If you have a container full of ice and you add enough kinetic energy to create a phase change it is now a...

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-4

What type of substance has molecules that can move away from each other?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

Substance A has a strong attraction between its molecules and substance B has a weak attraction between its molecules. They are both liquids at room temperature. If the same amount of kinetic energy is added to them which substance is more likely to change to a gas?

• substance a

• substance b

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which substance has molecules that are moving?

• the liquid water

• the ice

• neither water or ice

• both ice and water

Tags

NGSS.MS-PS1-4

Substance B is a liquid in a sealed container. Brock removed kinetic energy from the substance by putting it in the refrigerator next to his headcheese and cow tongue sandwich. Substance B underwent a phase change. What happened?

• The molecules slowed down and substance b is now a solid.

• The molecules slowed down and substance b is now a liquid.

• The molecules are moving faster and substance b is now a gas.

• The molecules are moving faster and substance b is now a solid.

Tags

NGSS.MS-PS1-4

All liquids freeze at 0 degrees Celsius.

• true

• false

Tags

NGSS.MS-PS1-4

When you heat something up you are actually increasing the kinetic energy in that substance.

• true

• false

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following images represents the freedom of movement of a gas?

• A
• B
• C

A scientist has a container with a substance inside. What change did the scientist observe in the substance?

• Before, the substance was a gas. Later, it was a liquid.
• Before, the substance was a liquid. Later, it was a solid.
• Before, the substance was a liquid. Later, it was a gas.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4