Phase Change Critical Juncture

Front

What is a phase change?

Back

A phase change is the transformation of a substance from one state of matter to another, such as solid to liquid or liquid to gas.

Tags

NGSS.MS-PS1-4

Front

What are the three states of matter?

Back

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

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.

Front

How do molecules behave in a liquid?

Back

In a liquid, molecules are close together but can move around each other.

Tags

NGSS.MS-PS1-4

Front

How do molecules behave in a gas?

Back

In a gas, molecules are far apart and move freely and quickly.

Front

What happens to molecules when energy is added to a substance?

Back

When energy is added, molecules move faster, which can lead to a phase change.

Tags

NGSS.MS-PS1-4

Front

What happens to molecules when energy is removed from a substance?

Back

When energy is removed, molecules move slower, which can also lead to a phase change.

Tags

NGSS.MS-PS1-4

Front

What is melting?

Back

Melting is the phase change from solid to liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid.

Tags

NGSS.MS-PS1-4

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4