Phase Change

Front

What is evaporation?

Back

Evaporation is the process where liquid water turns into water vapor (gas) when it is heated.

Front

What is condensation?

Back

Condensation is the phase change from a gas to a liquid, often seen when water vapor cools and forms droplets.

Front

What happens when energy is added to a substance?

Back

When energy is added to a substance, it can cause a phase change, such as melting or evaporation.

Front

What is melting?

Back

Melting is the phase change from solid to liquid, occurring when a solid is heated.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid, occurring when a liquid is cooled.

Front

What is the role of energy in phase changes?

Back

Energy is required for all phase changes; it can be added or removed to change the state of matter.

Front

What is an example of a phase change?

Back

An example of a phase change is water boiling, which changes from liquid to gas.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at any temperature and only at the surface, while boiling occurs throughout the liquid at a specific temperature.

Front

What is sublimation?

Back

Sublimation is the phase change from solid directly to gas, bypassing the liquid state, like dry ice turning into carbon dioxide gas.

Front

What is deposition?

Back

Deposition is the phase change from gas directly to solid, like frost forming on a cold surface.