States of Matter and Their Changes

What are the three main states of matter?

• solid, liquid, gas

• gas, liquid, crystal

• solid, liquid, plasma

• plasma, vapor, foam

What is the state of matter that has a definite shape and volume?

• Liquid

• Solid

• Gas

• Plasma

What happens to a solid when it is heated?

• A solid contracts and becomes denser when heated.

• A solid expands and may melt when heated.

• A solid turns into a gas immediately when heated.

• A solid remains unchanged regardless of temperature.

What is the process called when a liquid turns into a gas?

• Condensation

• Sublimation

• Evaporation or boiling

• Freezing

What state of matter takes the shape of its container?

• Gas

• Plasma

• Liquid

• Solid

What is the term for a gas turning into a liquid?

• Sublimation

• Precipitation

• Evaporation

• Condensation

What is an example of a solid?

• Water

• Ice

• Air

• Steam

What happens to water when it freezes?

• Water expands and becomes less dense when it freezes.

• Water turns into a gas when it freezes.

• Water becomes denser and sinks when it freezes.

• Water evaporates completely when it freezes.

What is the process called when a solid turns directly into a gas?

• Sublimation

• Evaporation

• Melting

• Condensation

What is the state of matter that has no definite shape or volume?

• Plasma

• Gas

• Solid

• Liquid