Phase Change

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 changes in energy or temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What happens to molecules during melting?

Back

During melting, molecules gain energy, move faster, and become less tightly packed, transitioning from a solid to a liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is condensation?

Back

Condensation is the process where gas turns into a liquid, usually when it cools down and loses energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

How do molecules behave in a solid?

Back

In a solid, molecules are closely packed together and vibrate in place, resulting in a fixed shape and volume.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into gas, usually when it gains enough energy to break free from the liquid state.

Tags

NGSS.MS-PS1-4

Front

What happens to molecules during freezing?

Back

During freezing, molecules lose energy, move slower, and become more tightly packed, transitioning from a liquid to a solid.

Tags

NGSS.MS-PS1-4

Front

How do molecules behave in a liquid?

Back

In a liquid, molecules are close together but can move past one another, allowing the liquid to take the shape of its container.

Front

What is the difference between gas and liquid in terms of molecule arrangement?

Back

In a gas, molecules are far apart and move freely, while in a liquid, molecules are closer together but can still move around.

Tags

NGSS.MS-PS1-4

Front

What is the process of melting?

Back

Melting is the phase change from solid to liquid that occurs when a substance absorbs heat.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the relationship between temperature and phase changes?

Back

Temperature affects the energy of molecules; increasing temperature can cause melting or evaporation, while decreasing temperature can lead to freezing or condensation.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4