8th Grade Science - Unit 4 - Daigle
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Created by:
ScarletDistraction on November 30, 2011
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12 terms
Terms | Definitions |
|---|---|
 Compound | A substance is made up of atoms of two or more different elements joined by chemical bonds |
| Colloid | A type of matter that has properties of both liquids and solids |
| Atom | The smallest unit of an element that maintains the properties of that element |
| Element | A substance that cannot be separated or broken down into simpler substances by chemical means |
| Metals | An element that is shiny and conducts heat and electricity well |
| Metalloids | An element that has properties of metals and nonmetals |
| Molecule | The smallest unit of a compound that keeps all of the physical and chemical properties of that compound |
| Nonmetals | An element that conducts heat and electricity poorly |
| Mixture | A combination of two or more substances that are not chemically combined |
| Pure Substance | A sample of matter, either single element or single compound, that has definite chemical and physical properties (same throughout) |
| Periodic Table of Elements | A chart that organizes all the elements by common characteristics and properties |
| Density | The ratio of mass of a substance to the volume of a substance (how heavy a substance is for its size) |
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