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SCHS Chapter 1
Glencoe Chemistry Chp. 1
| Term | Definition |
|---|---|
| applied research | is research undertaken to SOLVE a specific problem |
| chemistry | is the study of matter and the changes that it undergoes |
| conclusion | is a judgement based on the information obtain |
| control | a standard for comparison. It will always be the same when measured |
| dependent variable | the change in response to a change in the independent variable (responding variable). Example velocity of an object on different rug types (y axis) |
| experiment | is a set of controlled observations that test the hypothesis by changing on and test one variable at a time. |
| hypothesis | is a tentative explanation for what has been observed....educated guess |
| independent variable | is the variable that you plan to change (manipulated variable. The different rug types and measure the velocity changes with the different types (x axis) |
| mass | is a measurement that reflects the amount of matter |
| matter | is any that has mass and takes up space |
| model | is a visual, verbal, and/or mathematical explanation of experimental data |
| pure research | seeks to gain knowledge for the sake of knowledge itself |
| qualitative data | the types of observations scientists fir makes containing information that describes color, odor, shape, or a physical characteristic.(5 senses) |
| quantitative data | measurement or numerical information (example is amount) |
| scientific law | a relationship in nature that is supported by many experiments. |
| scientific method | is a systematic approach used in scientific study. An organized process used by scientists to do research and provide a method scientists to verify the work of other. |
| technology | is the practical use of scientific information concerned with making improvements in human life and the world around us |
| theory | is an explanation that has been supported by many many experiments |
| weight | is a measure not only of the amount of matter but also the effect of Earth's gravitational pull on that matter |