1	Physical and Chemical Properties and Changes 6th Grade Science Notes
2	Matter Matter is anything that has mass and takes up space. All matter has physical and chemical properties that help to distinguish one kind from another kind.
3	Physical Properties and Changes A physical property is a characteristic of a substance that can be observed without changing the substance into something else.
4	Physical Properties Measurable: Length, Mass, Volume, and Density Appearance: Color and Shape, Odor, Taste, Texture, Hardness Metallic: Malleability, Ductility, Attract to a magnet Change in State: Melting Point and Boiling Point, Solid, Liquid, Gas
5	Examples of Physical Properties
6	Physical Change A change that alters the form or appearance of a material but does not make the material into a new substance is called a Physical change. Key words: torn, expands, bends, mixing, dissolved, melting
7	Physical Change Examples
8	Chemical Properties A Chemical property is any characteristic that is observed when a substance interacts with another substance. Burning or flammability is a chemical property as well as rusting. Another chemical property determines whether a substance will explode like fireworks or tarnish like a piece of silver.
9	Chemical Property Examples
10	Chemical Change A Chemical change or chemical reaction is a change in matter that creates a new substance. In a chemical change, elements may combine to form compounds, or compounds may be broken down into elements, or compounds may change into other compound.
11	Chemical Change A chemical change produces a new substance with properties different from the original substances. Signs of a chemical change include creating heat, smoke, change in color, bubbles, production of light, production of sound, and reaction to oxygen. Key words: explosive, rusts, tarnishes, flammable, ability to, or corrosive
12	Chemical Change Examples
13	Kinds of Matter Elements: An element is a substance that cannot be broken down into any other substance by chemical or physical means. Each element can be identified by its specific physical and chemical properties.
14	Kinds of Matter Compounds A compound is a substance made of two or more elements chemically combined in a set ratio or proportion. Compounds have their own specific properties.
15	Kinds of Matter Mixtures: A mixture is made from two or more substance (elements, compounds, or both) that are in the same place but are not chemically combined. Substance in a mixture keep their specific properties. Parts of a mixture are not necessarily present in set ratio.
16	States of Matter Solids: Have a definite shape and a definite volume. Particles are packed closely together. These particles vibrate or move back and forth slightly.
17	State of Matter Liquids: Have a definite volume but take on the shape of the container they are in. The particles in a liquid are free to move around one another.
18	States of Matter Gases: Have no definite shape or volume. Particles of gases can be squeezed into small areas or expand into larger areas.