click below
click below
Normal Size Small Size show me how
Chapter 1.3
Vocabulary
Term | Definition |
---|---|
scientific method | the series of steps followed to solve problems. |
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 | used to test a hypothesis and its predictions. |
control group | provides a normal standard against which the biologist can compare results of the experimental group. |
experimental group | identical to the control except for the independent variable. |
independent variable | the factor that is deliberately manipulated. |
dependent variable | the factor that that changes as a result of manipulation or one or more other factors |
theory | an explanation for some phenomenon that is based on observation, experiments, and reasoning; that is supported by evidence and doesn't conflict with any other experimental results or observations. |
peer review | the process in which experts in a given field examine the results and conclusions of a scientist's study before that study is accepted for publications. |