phase changes

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to the addition or removal of energy.

Tags

NGSS.MS-PS1-4

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.

Front

What is required for a phase change to occur?

Back

Energy must be added or taken away from the substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is evaporation?

Back

Evaporation is the process by which liquid turns into gas.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What happens to molecules during evaporation?

Back

Molecules gain kinetic energy and move faster, allowing them to escape the liquid phase.

Tags

NGSS.MS-PS1-4

Front

What is condensation?

Back

Condensation is the process by which gas turns into liquid.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What causes condensation to occur?

Back

Condensation occurs when the temperature of the gas decreases, causing the molecules to lose energy and come together to form a liquid.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

How does temperature affect the kinetic energy of molecules?

Back

As temperature increases, the kinetic energy of molecules increases, causing them to move faster.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the relationship between kinetic energy and phase changes?

Back

Kinetic energy influences the state of matter; higher kinetic energy can lead to phase changes from solid to liquid (melting) or liquid to gas (evaporation).

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is melting?

Back

Melting is the process by which a solid turns into a liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4