The system of units used by scientists to measure the properties of matter.

Bonus: Who is your favorite scientist out of these 4?

The measure of how much matter is in an object

The amount of space matter occupies

The measure of the force of gravity on an object

A substance made of two or more elements chemically combined

A substance made of only one kind of matter and having definite properties.

A substance that can't be broken down into other substances by chemical or physical means

A very well-mixed mixture

Two or more substances that are mixed together but not chemically combined

A characteristic property of a substance that indicates it's ability to undergo a specific chemical change

A change in which one or more substances are combined or broke apart to form new substances

A change of a substance that doesn't change its identity

The temperature at which a substance changes from a solid to a liquid

The temperature at which a liquid turns into a gas

A quality or a substance that never changes and can be used to identify the substance.

Anything that has mass and takes up space