Chapter 1 Introduction to Chemistry - Mr. Matchell
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24 terms
Terms | Definitions |
|---|---|
 chemistry | the study of matter and the changes it undergoes |
| matter | anything that has mass and takes up space |
| mass | a measurement that reflects the amount of matter |
| biochemistry | the study of the matter and processes of living things |
| organic chemistry | the study of carbon-containing chemicals |
| analytical chemistry | the study of the components and composition of substances |
| inorganic chemistry | the study of matter that does not contain organic chemicals |
| physical chemistry | the study of the behavior and changes of matter and the related energy changes |
| submicroscopic | examples of this would be atoms, protons. electrons and bonding |
| macroscopic | observations of this would be structure, composition and behavior |
| weight | a measure not only of the amount of matter but also the effect of earth's gravitationl pull on that matter |
| observation | the act of gathering information |
| qualitative data | information that describes color, odor, shape or other physical characteristics |
| quantitative data | numerical information |
| hypothesis | a tentative explanation for what has been observed |
| experiment | a set of controlled observations that test the hypothesis |
| independent variable | what you plan to change in your experiment |
| dependent variable | what changes in response to the change made |
| constant | the part of an experiment that is not allowed to change in the experiment |
| control | the standard used for comparison |
| theory | an explanation that has been supported by many experiments |
| law | a relationship in nature that is supported by many experiments |
| pure research | seeks to gain knowledge for the sake of knowledge itself |
| applied research | research undertaken to solve a specific problem |
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