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Unit 2
Investigating Properties of Matter
| Term | Definition |
|---|---|
| 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 substance 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 |