Phases of MATTER

What is plasma?

• A state of matter where gas is energized until atomic particles break free.

• A liquid state of matter that has a fixed volume but no fixed shape.

• A solid state of matter that maintains a fixed shape and volume.

• A gaseous state of matter that is completely ionized and has no mass.

What do you add to a liquid to turn it into a solid?

• Heat

• Cold

• Sugar

• Salt

What is the process of changing a gas to a liquid called?

• Evaporation

• Condensation

• Sublimation

• Precipitation

What is an example of condensation?

• Water droplets forming on the outside of a cold glass.

• Ice forming on a lake in winter.

• Steam rising from a hot cup of coffee.

• Rain falling from the sky.

What is the process of changing a liquid to a solid called?

• Freezing

• Melting

• Evaporating

• Condensing

What is an example of a substance that can exist in all three states of matter?

• Water

• Oxygen

• Iron

• Carbon Dioxide

What is the process of changing a gas to a solid called?

• Condensation

• Sublimation

• Deposition

• Evaporation

What happens to a solid when heat is added?

• It remains unchanged.

• It melts and changes into a liquid.

• It becomes a gas immediately.

• It hardens and becomes more solid.

What happens to a liquid when heat is added?

• It freezes and becomes a solid.

• It evaporates and changes into a gas.

• It remains unchanged.

• It turns into a solid immediately.

What is the freezing point of water?

• -10 degrees Celsius (14 degrees Fahrenheit)

• 0 degrees Celsius (32 degrees Fahrenheit)

• 100 degrees Celsius (212 degrees Fahrenheit)

• -5 degrees Celsius (23 degrees Fahrenheit)