Phase Change - Amplify Chapter 1

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 temperature or pressure.

Tags

NGSS.MS-PS1-4

Front

What happens to molecules during melting?

Back

During melting, molecules gain energy, move faster, and break free from their fixed positions, transitioning from solid to liquid.

Tags

NGSS.MS-PS1-4

Front

What is condensation?

Back

Condensation is the phase change from a gas to a liquid, occurring when gas molecules lose energy and come closer together.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

How does the movement of molecules differ in solids, liquids, and gases?

Back

In solids, molecules vibrate in place; in liquids, they move around each other; in gases, they move freely and rapidly.

Tags

NGSS.MS-PS1-4

Front

What is the phase change from liquid to solid called?

Back

The phase change from liquid to solid is called freezing.

Tags

NGSS.MS-PS1-4

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas, occurring when molecules at the surface of a liquid gain enough energy to escape into the air.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

Describe the appearance of a liquid at the macro and molecular scale.

Back

A liquid fills its container, has no fixed shape, and molecules can move and flow around each other.

Front

What keeps a solid in its shape?

Back

A solid keeps its shape because its molecules are tightly packed and only move in place.

Front

What is the phase change from gas to solid called?

Back

The phase change from gas to solid is called deposition.

Tags

NGSS.MS-PS1-4

Front

What is the relationship between temperature and phase changes?

Back

Temperature changes can cause phase changes; increasing temperature can lead to melting or evaporation, while decreasing temperature can lead to freezing or condensation.

Tags

NGSS.MS-PS1-4