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Unit 2

Properties of Matter

Physical Property Property of matter that can be observed without changing the composition or identity of the matter.
Metals An element that is typically a hard, shiny solid, is malleable, and is a good conductor of heat and electricity.
Nonmetals An element that is usually a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and is typically not shiny.
Metalloids An element that shares some properties of metals and some of non-metals
Luster The way the surface of a mineral reflects light; ex. silky, dull, glassy.
Conductivity A property that describes if heat or electrical charges pass through the material easily.
Malleability A property that describes the ability of the material to be rolled or hammered into thin sheets.
Magnetism A property that describes if the material is magnetic.
Ductility A property that describes if the material has the ability to be pulled into thin wire without breaking.
States of Matter Solid, Liquid, Gas
Density The amount of matter that will fit into a given amount of space.
Volume The amount of space that a substance or object occupies.
Mass The amount of matter in something.
Minerals Minerals have an orderly arrangement of atoms and a definite chemical composition which gives it a unique set of physical properties.
Hardness A mineral's resistance to being scratched. The Moh's Hardness Scale - 1 being easy to scratch and 10 being the hardest to scratch. 3 or 4 can be scratched with fingernail.
Physical Properties of Minerals Hardness, (Mohs Hardness Scale), Color, Luster, Streak
Streak Streak is the color of a mineral in powdered form. It is the color of the mineral in powder form. You use a streak plate. This is not affected by weathering