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Unit 3 Vocab
Chemistry
| Term | Definition |
|---|---|
| Plasma | A state of matter where the particles get so hot that the electrons escape the bonds of the atoms |
| Liquid | The state of matter where the particles are close together but they slide past one another. |
| Melt | When a solid becomes a liquid |
| Freeze | When a liquid becomes a solid |
| Condense | When a gas turns into a liquid |
| Evaporate | When a liquid turns into a gas |
| Gas | The state of matter where the particles are moving independently of one another quickly. |
| Sublimate | When a soild turns into a gas skipping the liquid state |
| Freezing Point | The temperature at which a liquid turns into a solid |
| Boiling Point | The temperature at which a liquid turns into a gas |
| Condensation Point | The temperature at which a gas turns into a liquid |
| Melting Point | The temperature at which a solid tuns into a liquid |
| Chemistry | The study of the properties of matter and how matter changes. |
| Matter | Anything that has mass and takes up space (has volume) |
| Element | A pure substance that cannot be separated into simpler substances by physical or chemical means |
| Compound | A pure substance made up of two or more elements that are chemically combined |
| Mixture | A combination of two or more substances not chemically combined. |
| Solution | A combination of two or more substances evenly mixed together where one is dissolved into the other. |
| Homogeneous | A mixture with a uniform composition (looks like it is all one substance) |
| Heterogeneous | A mixture with an uneven composition (looks like more than one substance mixed together) |
| Solid | The stat of matter where the particles are close together and vibrate. |
| Crystal | Solids with particles arranges in a 3D lattice shaped pattern. |
| Poymer | Solids also called amorphous solids that have particles arranged in long strands or chains |
| Endothermic | Reactions or changes that gain or increase in heat |
| Exothermic | Reactions or changes that lose or decrease in heat |
| Chemical Property | Characteristics of a substance that change the substance |
| Physical Property | Characteristics of a substance that do not change the substance |
| Chemical Change | Changes in matter that create a new substance |
| Physical Change | Changes in matter that do not create a new substance |