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Week 2 Vocabulary
| Question | Answer |
|---|---|
| controlled experiment | a test of the effect of a single variable by changing it while keeping all other variables the same |
| controlled variable | factor in an experiment that a scientist purposely keeps the same |
| data | evidence; information gathered from observations |
| dependent variable | factor in an experiment that a scientist wants to observe, which may change because of the independent variable. |
| hypothesis | possible explanation for a set of observations or a possible answer to a scientific question. |
| independent variable | the factor in an experiment that a scientist purposely changes |
| inference | logical interpretation based on prior knowledge and experience |
| manipulated variable | the factor in an experiment that a scientist purposely changes |
| observation | use of one or more of the senses-sight, hearing, touch, smell, and sometimes taste-to gather information |
| responding variable | factor in an experiment that a scientist wants to observe, which may change in response to the manipulated variable. |
| spontaneous generation | an early hypothesis (it was disproved) stating that life could arise from non-living matter |
| theory | well-tested explanation that unifies a broad range of observations |