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PS 3 Matter
PS 3 Matter Part 1
| Term | Definition |
|---|---|
| Atom | the smallest part of an element that has the properties of that element |
| Element | a pure substance that cannot be broken down by chemical or physical means |
| Compound | a substance made of two or more elements chemically combined |
| Mixture | two or more substances that are together in the same place but their atoms are not chemically bonded |
| Pure Substance | matter that consists of only one type of atom, molecule, or compound |
| Physical Property | a characteristic of a substance that can be observed without changing it into another substance |
| Solubility | a measure of how well a substance can dissolve into another substance |
| Luster | shine or lack of shine, dullness |
| Malleable | property that allows metals to be made into sheets |
| Texture | the feel of a surface or substance |
| Conductivity | ability of a substance to pass an electric current through it |
| Chemical Property | a characteristic of a substance that describes its ability to change into another substance |
| Combustability/Flammability | can be easily ignited and burned |
| pH | acidity of a substance |
| Reactivity | the ease and speed with which a substance combines and reacts with other substances |
| Endothermic | absorbs heat and feels cold |
| Exothermic | releases heat and feels hot |
| Melting | the change in state from a solid to a liquid |
| Freezing | the change in state from a liquid to a solid |
| Vaporization | the change of a state from a liquid to a gas |
| Condensation | the change in state from a gas to a liquid |
| Sublimation | the change in state from a solid to a gas |
| Solid | phase of matter that has a definite shape and volume |
| Liquid | phase of matter that takes the shape of its container and has a definite volume |
| Gas | phase of matter that has no definite shape or volume |
| Plasma | phase of matter that can occur when a gas becomes electrically charged |
| Chemical Change | one or more new substances are formed; usually cannot be reversed |
| Physical Change | does not create a new substance and is usually reversible |
Created by:
Ms. Wright
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