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| science | comes from the Latin verb scire, meaning "to know" |
| experimental method | consists of a series of steps that scientists worldwide use to identify and answer questions |
| observation | a piece of information we gather using our senses |
| hypothesis | a testable idea or explanation that leads to a scientific investigation |
| prediction | a logical statement about what will happen if the hypothesis is correct |
| experiment | a procedure designed to test a hypothesis under controlled conditions |
| variable | the factor of interest |
| experimental group | the group that receives the experimental treatment |
| control group | the group that does not receive the experimental treatment |
| data | the information that a scientist gathers during an experiment, often in numeric form |
| bar graph | useful for comparing the data for several things |
| correlations | assocations between two or more events |
