Properties of Matter Chapter 12 Matter Matter Cont. • Matter is anything that has mass and takes up space. Everything you can see is matter. Even things you cannot see, such as air, are matter. • There are three forms that matter usually takes: solid, liquid, and gas. These forms are called the States of Matter. Atom • The smallest particle of matter that has all the properties of that matter is called an atom. Molecule • A Molecule is a single particle of matter that is made up of two or more atoms joined together. • Example: The smallest particle of water is a molecule made up of three atoms. Physical Property • A Physical property is a characteristic of matter that can be observed without changing matter into something new. • State (gas, solid, liquid), size, shape, color, and texture are some examples of physical properties. • For example, Watchung School is a large, red, building. • Large and red describe physical properties of matter. Physical Property This picture shows different sizes, shapes and colors which are all physical properties Chemical Property • A chemical property is a characteristic of matter that can be observed only when matter is changed into a new kind of matter. • An example of a chemical property would be after wood is burnt, the wood becomes ash. Ash is a different kind of matter than wood. Chemical Property Mass • Mass is the amount of matter in an object. • Example: Although these bricks are the same size, color, shape, and texture, the top brick feels heavier because it has more mass. • The top brick has more mass because it is a real brick. The bottom brick has less mass because it is a foam brick. Weight • Weight is the measure of the pull of gravity on an object. • Example: This spring scale measures the pull of gravity on the bananas. Density • Density describes how much matter is in a given space, or volume. • Think of one pound of gold and one pound of feathers. They contain the same mass, but the mass is more dense in the gold, because its volume is much smaller.