Topic 2 - Solids, Liquids and Gases

Has a definite shape and volume. Particles are packed very close together, locked in position so they can't move around. They only vibrate in place.

• plasma

• gas

• solid

• liquid

Tags

NGSS.MS-PS3-4

A liquids resistance to flowing.

High ________ means slow flow.

Low ________ means a quick flow.

• vibration

• surface tension

• suspension

• viscosity

When a substance changes from a liquid to a solid.

*Particles move so slowly that they begin to take on fixed positions*

• melting/melting point

• solidification point

• freezing/freezing point

• vaporization

Tags

NGSS.MS-PS1-4

The change in state from a gas to a liquid.

*Occurs when particles in a gas lose enough thermal energy to change state*

• evaporation

• boiling

• sublimation

• condensation

Tags

NGSS.MS-PS1-4

The force of an outward push of a gas over an area is known as ____________.

What happens to the pressure of a gas when it is exposed to cold air?

• decreases

• increases

• stays the same

Tags

NGSS.MS-PS1-4

Check all of the items that describe a liquid

• has a definite volume

• has a definite shape

• particles are packed in a rigid, repeating pattern

• takes the shape of its container, no shape of its own

• particles are not fixed in place, they move around one another

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Solid made of crystals; the particles form a regular repeating pattern and they melt at a distinct temperature.

• amorphous solid

• crystalline liquid

• amorphous liquid

• crystalline solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The change in state from a liquid to a gas; there are two types of this state change; occurs when the particles gain enough energy to move away from each other.

• solidification

• sublimation

• vaporization

• condensation

Tags

NGSS.MS-PS1-4

Check the two changes in state that are considered to be vaporization.

• sublimation

• evaopration

• melthing

• boiling