States of Matter and Energy Changes

What are the three main states of matter found on Earth?

• Solid, liquid, and gas

• Solid, plasma, and gas

• Liquid, plasma, and gas

• Solid, liquid, and plasma

What generally happens to matter when it is heated?

• It always becomes a solid

• It always becomes a liquid

• It can transition from solid to liquid to gas

• It can transition from gas to liquid to solid

When a solid material is heated and absorbs energy, what happens to the attractive forces between its molecules?

• They become stronger

• They break apart

• They remain unchanged

• They form new bonds

What is a key difference between boiling and evaporation?

• Boiling only occurs at the surface, while evaporation occurs throughout the liquid

• Evaporation is a faster process than boiling

• Boiling requires all particles to have enough energy to become gaseous, while evaporation only requires surface particles

• Evaporation only happens when a liquid is heated by an external source

What is the general term for a substance transforming from a liquid to a gas?

• Condensation

• Freezing

• Vaporization

• Melting

Which of the following is an example of condensation?

• Ice melting into water

• Water boiling in a pot

• Dry ice turning into gas

• Water droplets forming on a cold can

When ice melts, what happens to the heat energy and the bonds between water molecules?

• Heat energy is released, and bonds become stronger

• Heat energy is absorbed, and bonds break

• Heat energy is released, and bonds break

• Heat energy is absorbed, and bonds become stronger

When liquid water freezes into ice, what happens to the heat energy and the bonds between water molecules?

• Heat energy is absorbed, and more bonds form

• Heat energy is released, and bonds break

• Heat energy is absorbed, and bonds break

• Heat energy is released, and more bonds form

What is the process called when a solid turns directly into a gas without first becoming a liquid?

• Evaporation

• Condensation

• Sublimation

• Melting

What remains the same when a material changes its state, and what changes?

• Mass changes, density stays the same

• Both mass and density change

• Mass stays the same, density changes

• Both mass and density stay the same