Matter Unit

What are the three states of matter?

• solid, liquid, and plasma

• plasma, liquid, and gas

• solid, gas, and plasma

• solid, liquid, and gas

Which state of matter has a definite shape and volume?

• solid

• liquid

• gas

• plasma

Which state of matter has a definite volume but takes the shape of its container?

• solid

• gas

• plasma

• liquid

Which state of matter has no definite shape or volume?

• plasma

• liquid

• solid

• gas

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

• condensation

• sublimation

• evaporation

• melting

Samuel left a glass of ice-cold water outside on a hot day. After a while, he noticed droplets of water forming on the outside of the glass. What is this process called when a gas changes into a liquid?

• evaporation

• condensation

• sublimation

• solidification

Give an example of a reversible change.

• Melting ice into water and then freezing the water back into ice

• Boiling water and turning it into steam

• Burning wood and turning it into ashes

• Cutting a piece of paper into smaller pieces

Give an example of an irreversible change.

• Burning a piece of paper

• Cutting a piece of paper

• Boiling water

• Melting ice

The process where the water on Earth moves continuously in a cycle is called

• Sublimation

• The Earth Cycle

• The Water Cycle

• The Rain Cycle

What happens to water when it freezes?

• It turns into liquid.

• It turns into ice.

• It turns into gas.

• It turns into steam.