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Category 1
Matter and Energy
| Term | Definition |
|---|---|
| Metals | elements located on the left of the stairs on the Periodic Table |
| Nonmetals | elements located to the right of the stairs on the Periodic Table |
| Metalloids | elements located on the stairs of the Periodic table |
| Luster | the way light reflects from the surface of a substance |
| Malleability | able to be hammered or bent |
| Ductility | ale to be stretched into wire |
| Brittle | able to break or shatter under stress |
| Conductivity | to move electricity or heat from one place to another |
| Element | a pure substance that cannot be broken down chemically |
| Compound | a substance that consists of two or more different elements |
| Subscript | the number that indicates the number of atoms of a specific element |
| Coefficient | the number that indicates the number of molecules in a chemical formula |
| Reactants | elements or compounds on the left side of a chemical equation |
| Products | elements or compounds on the right side of a chemical equation |
| Law of Conservation of Mass | matter cannot be created or destroyed |
| Chemical Change | results in the formation of a new chemical substance |
| Physical Change | matter is altered but the substance is not transformed into another |
| Evidence of Chemical Reaction | Color, Temperature, Light, Odor, Precipitate, Gas, Sound |
| Density | the objects mass divided by it volume |
| Water Displacement | putting an object into water and recording how much the water level rises |