Front

What happens to air particles in a hot air balloon when heated?

Back

They expand.

Front

What state of matter has no definite shape and no definite volume?

Back

Gas.

Front

Which state of matter exists at point E and beyond?

Back

Gas.

Front

What state change does dry ice represent?

Back

Sublimation.

Front

What phase change occurs between points B and C if heat is added?

Back

Melting.

Front

What is the kinetic theory of matter?

Back

It states that all matter is made up of tiny particles that are in constant motion.

Front

What happens to the motion of particles when temperature increases?

Back

The motion of particles increases.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at the surface of a liquid at any temperature, while boiling occurs throughout the liquid at a specific temperature.

Front

What is condensation?

Back

The process by which gas turns into liquid.

Front

What is deposition?

Back

The process by which gas turns directly into solid without becoming liquid first.