Standard 8.4 & 8.15: States of Matter & Thermal Energy

Front

What happens to a snowman when it melts?

Back

It changes from a solid to a liquid.

Front

What does higher average kinetic energy indicate?

Back

The higher the temperature.

Front

What is the term for the increase in volume of a substance when temperature increases?

Back

Thermal expansion.

Front

What phase change occurs when a liquid turns into a gas?

Back

Evaporation.

Front

What happens to the particles in a popsicle when it melts?

Back

The particles gain thermal energy and speed up.

Front

What are the three main states of matter?

Back

Solid, liquid, gas.

Front

What is thermal energy?

Back

The total energy of all the particles in a substance.

Front

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

Back

Condensation.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, kinetic energy increases.

Front

What is the term for the change from solid to gas without becoming liquid?

Back

Sublimation.