Phase Changes

Front

What phase do molecules fill a container?

Back

Gas

Front

How do gas molecules move?

Back

They move all over the place and away from each other.

Tags

NGSS.MS-PS1-4

Front

Is kinetic energy the energy every molecule has at rest?

Back

False, kinetic energy is the energy of motion.

Front

Do substances with stronger levels of attraction need more energy to change phases?

Back

True

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What happens to molecules during a phase change?

Back

They just move differently.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What are the three main phases of matter?

Back

Solid, Liquid, Gas.

Tags

NGSS.MS-PS1-4

Front

What is a phase change?

Back

A transition between different states of matter.

Tags

NGSS.MS-PS1-4

Front

What happens to the energy of molecules when they change from solid to liquid?

Back

The energy increases.

Tags

NGSS.MS-PS1-4

Front

What is the term for the energy required to change a substance from solid to liquid?

Back

Heat of fusion.

Tags

NGSS.MS-PS1-4

Front

What is evaporation?

Back

The process of a liquid turning into a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4