The three states of matter are:

• Solid

• Liquid

• Gas

Solids

Are characterized by molecules that are so close together, barely any movement is possible.

Liquids

Have molecules that are flowing freely, far enough away from each other to allow some movement.

Gases

A characterized by molecules that far apart from each other, making it easy for them to move around

Remember:

A physical change alters the shape of an object without changing the chemical composition. A change in an object's chemical make-up that cannot be reversed is a chemical change.

A mixture

Is a combination or two or more substances that can be mixed together and then separated again

A solution

Is when two or more substances are combined and cannot be separated.

Great Job! Don't forget:

• The three states of matter are solid, liquid and gas.

• A substance is something that is pure.

• A mixture is something that can be combined and then separated.

• A physical change is a change that changes an objects shape, but not the chemical make-up.