click below
click below
Normal Size Small Size show me how
Biology Chapter 1-3
| Term | Definition |
|---|---|
| scientific method | an organized approach used to learn how the natural world works |
| observation | the act of perceiving a natural occurrence that causes someone to pose a question |
| hypothesis | a proposed explanation for the way a particular aspect of the natural world functions |
| prediction | a statement that forecasts what would happen in a test situation if the hypothesis were true. |
| experiment | something used to test a hypothesis and its predictions |
| control group | the group in an experiment that provides a normal standard against which the biologists can compare results of the experimental group |
| experimental group | the group in an experiment that is identical to the control group except for one factor |
| independent variable | "manipulated factor"; the one factor in the experimental group that is not in the control group |
| dependent variable | "responding variable"; the thing that a scientist observes or measures, it is affected by the independent variable |
| theory | what a scientist uses to reclassify a set of related hypotheses that are confirmed to be true many times |
| peer review | when scientist who are experts in the field anonymously read and critique a research paper or journal entry. |