States of Matter Review

Front

What is the definition of a solid?

Back

A solid has a definite shape and definite volume.

Front

What is the definition of a liquid?

Back

A liquid has a definite volume but no definite shape.

Front

What is the definition of a gas?

Back

A gas has no definite shape and no definite volume.

Front

What happens to the molecules of a solid when it is heated?

Back

The molecules gain energy and begin to vibrate more, potentially changing to a liquid.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change results in the formation of new chemical substances.

Front

True or False: Solids take the shape of their container.

Back

False. Solids maintain their own shape.

Front

What occurs during the boiling of water?

Back

The water molecules gain energy, move faster, and change from liquid to gas.

Front

What is the process of melting?

Back

Melting is the process where a solid turns into a liquid when heated.

Front

What is the process of freezing?

Back

Freezing is the process where a liquid turns into a solid when cooled.