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_Scientific Meth.
Scientific Method Vocab.
| Term | Definition |
|---|---|
| scientific method | organized set of investigations 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 the 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 the other variables. |
| independent variable | factor that, as it changes, affects 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 scientist's 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 form 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, agrees-upon quantity used for comparison |
| SI | International System of Units- the improved, universally accepted version of the metric system that is based on multiples of ten and includes the meter (m), liter (L), and kilogram (kg). |
| volume | amount of space occupied by an object |
| mass | amount of matter in an object |
| density | mass per unit volume of a meterial |
| graph | visual display of information or data that can provide a quick way to communicate a lot of information and allow scientist to observe patterns |