Phase Change: Chapter 1

Which phase can the molecules flow around each other and take the shape of a container?

• Solid
• Liquid
• Gas

Which phase change increases the molecule's freedom of movement?

• Melting
• Freezing
• Condensing

Tags

NGSS.MS-PS1-4

A student left a sealed jar of water in her freezer. When she returned twelve hours later, the water had changed phase and was a solid. What happened to the water molecules?

• Before, the molecules were moving in place. After, the molecules were moving around each other.
• Before, the molecules were moving around each other. After, the molecules were moving in place.
  
• Before, the molecules were moving away from each other. After, the molecules were moving around each other.
  

Tags

NGSS.MS-PS1-4

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-PS1-4

NGSS.MS-PS1-2

Liquid to Gas...

• Evaporation
• Condensation
• Melting
• Freezing

Tags

NGSS.MS-PS1-4

Liquid to solid....

• Melting
• Condensation
• Evaporation
• Freezing

Phase change from a solid to a liquid.

• melting
• freezing
• evaporation
• condensation

Tags

NGSS.MS-PS1-4

Phase change from a gas to a liquid.

• condensation
• evaporation
• melting
• freezing

Tags

NGSS.MS-PS1-4

Freezing is...

• Solid to gas
• Liquid to solid
• Gas to solid
• Liquid to gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A car mechanic had a sealed bucket containing a substance in the gas phase. She left the bucket outside over the weekend. When she returned, the substance had changed phase, and the substance was in the liquid phase. What happened to the molecules of this substance?

• Before the mechanic left, the molecules were moving away from each other. When she returned, they were moving around each other.

• Before the mechanic left, the molecules were moving around each other. When she returned, they were moving in place.

• Before the mechanic left, the molecules were moving around each other. When she returned, they were moving away from each other.

• Before the mechanic left, the molecules were moving in place. When she returned, they were moving around each other.

Tags

NGSS.MS-PS1-4