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chapter 1 vocabulary
introduction to chemistry
| Question | Answer |
|---|---|
| Chemistry... | is the study of matter and the changes that it undergoes. |
| Matter... | anything that has mass and takes up space. |
| Mass... | is a measurement that reflects the amount of matter. |
| Weight... | is a measure not only of the amount of the matter but also of the effect of the earths gravitational pull on that matter. |
| Scientific Method... | is a systematic approach used in the scientific study, whether it is chemistry, biology, physics, or other sciences. |
| Qualitive Data... | information that describes color, odor, shape, or some other physical characteristics. |
| Quantitive Data... | numerical information. |
| Hypothesis... | is a tentative explanation for what has been observed. |
| Experiement... | is a set of controlled observations that test the hypothesis. |
| Independent Variable... | a variable that you plan to change. |
| Dependent Variable... | its value changes in response to a change in the independent variable. |
| Model... | a visual, verbal, and/or mathematical explanation of experimental data. |
| Theory... | an explanation that has been supported by many, many experiements. |
| Scientific Law... | A relationship in nature that is supported by many experiements. |
| Applied Research... | is research undertaken to solve a specific problem. |
| Technology... | the practical use of scientific notation. |