Phase Changes

Front

What are phase changes?

Back

Phase changes are the transitions between different states of matter, such as solid, liquid, and gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What happens to molecules in a solid?

Back

Molecules in a solid are closely packed together and vibrate in place, having the least amount of energy.

Front

What happens to molecules in a liquid?

Back

Molecules in a liquid are close together but can move past one another, having more energy than in a solid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What happens to molecules in a gas?

Back

Molecules in a gas are far apart and move freely, having the greatest amount of energy.

Front

What is condensation?

Back

Condensation is the process where a gas cools down and changes into a liquid.

Tags

NGSS.MS-ESS2-4

Front

What is evaporation?

Back

Evaporation is the process where a liquid changes into a gas, usually due to heating.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What is melting?

Back

Melting is the process where a solid gains energy and changes into a liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is freezing?

Back

Freezing is the process where a liquid loses energy and changes into a solid.

Tags

NGSS.MS-PS1-4

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without becoming a liquid first.

Tags

NGSS.MS-PS1-4

Front

What is the relationship between temperature and energy in phase changes?

Back

As temperature increases, the energy of the molecules increases, leading to phase changes from solid to liquid to gas.

Tags

NGSS.MS-PS1-4