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sci mth s.m.r
scientific method vocab
| Term | Definition |
|---|---|
| scientific method | organized set of investigation procedures that can include stating a problem,forming a hypothesis,researching and gathering information,testing a hypothesis,analyzing data, and drawing conclusions. |
| hypothesis | educated guess using what you know and what you observe. |
| experiment | organized procedure for testing a hypothesis;tests the effect of one thing on another under controlled conditions. |
| variable | factor that can cause a change in the results of an experiment. |
| dependent variable | factor that changes as a result of changes in other variables. |
| independent variable | factor that, as it changes, effects the measure of another variable. |
| constant | in an experiment a variable that does not change when other variables change. |
| control | standard used for comparison of test results in an experiment. |
| bias | occurs when a scientists expectations change how the results of an experiment are viewed. |
| model | can be used to represent an idea,object or event that is too big,too small,too complex,or too dangerous to observe or test directly. |
| theory | explanation of things or events that is based on knowledge gained from many observations and investigations. |
| scientific law | statement about what happens in nature that seems to be true all the time; does not explain why or how something happens. |
| technology | application of science to help people. |
| standard | exact agreed-upon quantity used for comparison. |
| SI | international system of units-the improved, universally accepted version of the metric system that is based on multiple of ten and includes the meter (m) liter (L) and kilogram (Kg) |
| volume | amount of space occuppied by an object. |
| mass | amount of matter in an obejct |
| density | mass per unit volume of a mterial |
| graph | visual display of information or data that can provide a quick way to to communicate a lot of information and allow scientist to observe patterns. |