Water Phase Changes

Identify the states of matter in the picture from left to right.

• Gas, solid, liquid

• Liquid, solid, gas

• Solid, liquid, gas

• Solid, gas, liquid

Tags

NGSS.MS-PS1-4

According to the graph, what causes water phase changes to occur?

• Broken up molecules due to temperature changes

• Air particle changes due to broken up molecules

• Temperature changes due to thermal energy (heat)

• Air density change due to thermal energy (heat)

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

True or false: Molecules can gain kinetic energy when heat is added and go from solid → liquid → gas.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

True or false: Energy can only travel from molecules that have high energy and are fast moving to molecules that have low energy and are slow moving.

• True

• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The cup in this picture has condensation on the outside of it because:

• Gas molecules in the air gain kinetic energy when they touch a cold surface and turn into liquid.

• Gas molecules in the air lose kinetic energy when they touch a cold surface and turn into liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A change in kinetic energy occurs when water vapor (gas) turns into liquid water (condensation) because:

• there is an energy transfer between the water molecules in the air (water vapor) and the cold outside surface of the cup.

• there is an energy transfer between the water molecules in the air (water vapor) and the hot outside surface of the cup.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

True or false: gas molecules are generally widely spread apart, can collide, and have high kinetic energy

• True

• False

True or false: liquid molecules have some kinetic energy, are moving about and are constantly in contact with each other.

• True

• False

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

True or false: solid molecules are closely spaced, vibrate in position, do not change their relative locations, and have little kinetic energy.

• True

• False

Tags

NGSS.MS-PS1-1

Molecules move slower when there is more thermal energy and faster when there is less thermal energy.

• True

• False

Tags

NGSS.MS-PS1-4