| A | B |
| Biology | The study of Life |
| Environmental Constant | Any factor which must be KEPT THE SAME for all trials |
| Variable | Any factor which may be changed or manipulated |
| Dependent Variable | The variable which will be changed during the experiment; what is measured; the results |
| Independent Variable | The item being tested. The ONE thing that is different between the experimental groups |
| Biogenesis | Life comes from life |
| Spontaneous Generation | Life comes from nothing or non-related forms |
| Hypothesis | Logical interpretation for a set of observations |
| Theory | Well tested group of related hypothesis |
| Control Group | The experimental group not receiving the variable. Represents "normal", something to compare to |