Heat Energy/States of Matter

Front

What are the three states of matter?

Back

Solid, Liquid, Gas

Front

What is heat energy?

Back

Heat energy is the energy that comes from the temperature of matter. It is the energy that causes the particles in matter to move.

Front

How does heat energy move?

Back

Heat energy moves from warmer objects to cooler objects.

Front

What happens to the particles in a solid?

Back

In a solid, particles are closely packed together and vibrate in place.

Front

What happens to the particles in a liquid?

Back

In a liquid, particles are close together but can move past each other, allowing liquids to flow.

Front

What happens to the particles in a gas?

Back

In a gas, particles are far apart and move freely, filling the space available.

Front

What is needed to change the state of matter?

Back

Heat is needed to change the state of matter.

Front

What is melting?

Back

Melting is the process of changing from a solid to a liquid by adding heat.

Front

What is freezing?

Back

Freezing is the process of changing from a liquid to a solid by removing heat.

Front

What is evaporation?

Back

Evaporation is the process of changing from a liquid to a gas by adding heat.