Changes of State

An uncovered pot of soup is simmering on Mr. Schaffer's stove, and there are water droplets on the wall behind it. What sequence can you infer has occurred?

• vaporization, then condensation

• freezing, then thawing

• condensation, then vaporization

• Mr. Schaffer is a mess

The change from liquid to solid, or the reverse of melting, is called:

• freezing
• condensation
• boiling
• sublimation

Tags

NGSS.MS-PS1-4

What is vaporization?

• a liquid becoming a gas
• a gas becoming a liquid
• a liquid becoming a solid
• a gas becoming a solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

During the process of sublimation,

• a solid turns directly into a gas
• a liquid turns to a gas
• a solid turns into a liquid
• a gas turns directly into a solid

Tags

NGSS.MS-PS1-4

A shrinking puddle is an example of ___________, or vaporization that takes place only on the surface of a liquid.

• evaporation
• boiling
• freezing
• melting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens when the particles in a liquid move so slowly that they begin to take on fixed positions?

• Condensation
• Vaporization
• Melting
• Freezing

Tags

NGSS.MS-PS1-4

The characteristic temperature at which a pure solid changes to a liquid is its __________ point.

• melting

• boiling

• Coyle

• pressure

Tags

NGSS.MS-PS1-4

_______ occurs when a liquid changes to a gas below its surface as well as at the surface.

• Boiling
• Evaporation
• Freezing
• Melting

Tags

NGSS.MS-PS1-4

What happens when the particles in a gas lose enough thermal energy to form a liquid?

• condensation

• vaporization

• Mr. Greer pukes in the car

• freezing

The characteristic temperature at which a pure liquid changes to a gas is its __________ point.

• boiling
• melting
• Snavely
• pressure

Tags

NGSS.MS-PS1-4