Exploring States of Matter

What are the three primary states of matter?

• solid, liquid, gas

• solid, liquid, plasma

• plasma, vapor, foam

• gas, liquid, crystal

Which phase change occurs when a solid turns into a liquid?

• Melting

• Freezing

• Sublimation

• Condensation

What is the process called when a liquid becomes a gas?

• Evaporation or boiling

• Condensation

• Freezing

• Sublimation

What happens to the temperature of a substance during melting?

• The temperature increases during melting.

• The temperature remains constant during melting.

• The temperature decreases during melting.

• The temperature fluctuates during melting.

Which state of matter has a definite shape and volume?

• Liquid

• Solid

• Gas

• Plasma

What is the term for the change from gas to liquid?

• Sublimation

• Evaporation

• Condensation

• Precipitation

What is sublimation?

• Sublimation is the transition of a substance from solid to gas without becoming liquid.

• The process of a gas turning into a solid directly.

• The evaporation of a liquid into a gas.

• The melting of a solid into a liquid.

What energy change occurs during freezing?

• Energy is converted to light during freezing.

• Energy is released as heat during freezing.

• Energy is absorbed as heat during freezing.

• No energy change occurs during freezing.

What happens to particles during condensation?

• Particles gain energy and spread apart, forming a gas.

• Particles remain stationary and do not change state.

• Particles increase in temperature and become solid.

• Particles lose energy and come closer together, forming a liquid.

Which phase change requires energy to be added?

• Sublimation and deposition require no energy change.

• Melting and vaporization require energy to be added.

• Evaporation and condensation require energy to be removed.

• Condensation and freezing release energy.