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Bio2 vocab 1
| Term | Definition |
|---|---|
| freezing point | The temperature at which a liquid of specified composition solidifies under a specified pressure. |
| boiling point | The temperature at which a liquid boils at a fixed pressure, especially under standard atmospheric conditions. |
| cohesion | The intermolecular attraction by which the elements of a body are held together. |
| adhesion | The physical attraction or joining of two substances, especially the macroscopically observable attraction of dissimilar substances. -------------------------------------------------------------------------------- |
| molecule | The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces. |
| intermolecular force | Forces between individual particles (atoms, molecules, ions) of a substance. |
| specific heat | The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. |
| evaporation | Evaporation is the process by which water is converted from its liquid form to its vapor form and thus transferred from land and water masses to the atmosphere. |
| density | a physical property of matter, as each element and compound has a unique density associated with it |
| fresh water | Freshwater is defined as having a low salt concentration — usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration (i.e., ocean). |
| surface tension | The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. |
| condensation | Condensation is the change of water from its gaseous form (water vapor) into liquid water |
| precipitation | Any form of water, such as rain, snow, sleet, or hail, that falls to the earth's surface |
| water vapor | water in the form of gas |
| universal solvent | water, due to its polarity and ability to dissolve into many different solutes. |
| solute | the component in a solution, dissolved in the solvent |
| atom | the basic unit of a chemical |
| fahrenheit | of or denoting a scale of temperature on which water freezes @ 32 degrees and boils @ 212 degrees under standard condition. |
| refaction | the bending or turning of light |
| reflection | projecting an image through light without absorbing it |
| ion | an atom or molecule with a net electric charge due to loss or gain of one or more electrons |
| cation | an ion or group of ions that have a posititve charge |
| anion | an ion or group of ions that has a negative charge. |
| electrolyte | a chemical compound that breaks into seperate ions when it is dissolved or molten to produce an electrically conductive product |
| conductivity | the ability or power to conduct or transmit heat, electricity, or sound. |
| melting point | the temperature at which a given solid will melt |
| polarity | the state of having a molecule with a net dipole as a result of opposing charges |
| controlled variable | constant variable |
| independant variable | variable that changes |
| dependant variable | variable that is altered based on changes that occur in the independent variable |
Created by:
krystal.mentser
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