Solids, Liquids, Gases

Front

What is the definition of a solid?

Back

A solid is a state of matter that has a definite shape and definite volume.

Front

What is the definition of a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container.

Front

What is the definition of a gas?

Back

A gas is a state of matter that has no definite shape or volume and expands to fill its container.

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 one another, 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 entire space available.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid that occurs when heat energy is removed.

Front

What is melting?

Back

Melting is the phase change from solid to liquid that occurs when heat energy is added.

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas that occurs at the surface of a liquid when heat energy is added.

Front

What is sublimation?

Back

Sublimation is the phase change from solid to gas without passing through the liquid state.