States of Matter Review Quiz 7th

The particles in this state of matter are packed very closely together and vibrate in place. This gives this state a definite shape and a definite volume.

• Gas

• Liquid

• Plasma

• Solid

The particles in this state are packed fairly close together, but they have the freedom to move around one another. This gives this state of matter the ability to flow and change shape. We say this state has a definite volume and an indefinite shape.

• Gas

• Liquid

• Plasma

• Solid

The particles in this state of matter are widely separated and move around very quickly. They often bounce off of each other and the walls of the container, creating a pressure. This state has an indefinite shape and an indefinite volume.

• Gas

• Liquid

• Plasma

• Solid

Fluids are materials that can flow and change shape because their particles have the ability to move around. Which two states of matter are classified as fluids?

• Gases and solids

• Gases and liquids

• Liquids and solids

• Ice and snow

Earth's atmosphere is mostly made up of the __________ state of matter.

• gas (or gaseous)

• liquid

• solid

• plasma

This is the change in state from a solid to a liquid. The solid particles gain enough heat energy to break free and move as a liquid.

• Freeziing

• Melting

• Evaporation

• Condensation

This is the gradual change from liquid to a gas. Particles of liquid at the surface get enough energy to escape the liquid phase and become a gas.

• Melting

• Sublimation

• Condensation

• Evaporation

This is the change from a gas to a liquid. The gas particles lose enough energy on a cool surface to slow down and come back together as a liquid. This is how clouds and fog form.

• Condensation

• Evaporation

• Melting

• Freezing

This is a measure of the average kinetic energy of motion of the particles in an object. It is measured with a thermometer.

• Mass

• Volume

• Temperature

• Air pressure

__________ energy is needed to change a substance from one state to another.

• Magnetic

• Heat

• Nuclear

• Elastic potential