Phases of Matter
Energy Transfer
Phase Changes
Vocabulary
100

How do the molecules move in a solid?

They move in place

100

What happens to molecules movement when you transfer energy in?

They move faster

100

If you remove energy from a gas, what phase will it change to?

A liquid

100

the way molecules in a substance move around relative to each other

Freedom of movement

200

How do the molecules move in a liquid?

They move around each other

200

What happens to molecules movement when you transfer energy out?

They move slower

200

If you add energy to a liquid what phase will it change to?

A gas

200

the energy that an object has because it is moving

Kinetic energy

300

How do the molecules move in a gas?

The move apart from each other

300

If you increase the temperature what happens to molecules?

They move faster

300

If you add energy to a solid, what will it change to?

A liquid

300

a pull between two molecules that is always the same for a substance

Molecular attraction

400

What phase of matter is rigid and keeps its shape?

Solid

400

If you decrease the kinetic energy of molecules what happens to the movement?

They move slower

400

If you transfer energy out of a liquid, what will it change to?

Solid

400

the relative size of things

Scale

500

True or false:  The molecules in a solid are moving.

True, they are moving in place

500

What happens to molecules kinetic energy when they move slower?

It decreases

500

If a solid is changing to a liquid, what is happening to the way the molecules move? Are the moving faster or slower?

Faster

500

a noticeably different form or state of the same substance

Phase