| A | B |
| independent variable | variable that is deliberately or intentionally changed by the scientist in an experiment - also called the manipulated variable |
| dependent variable | the variable that changes or responds to the variable that the experimenter manipulated, i.e. the one you measure |
| controlled variable | variables that are kept the same, or constant, in an experiment |
| hypothesis | an educated guess, or prediction, as to the outcome of an experiment |
| experimental group | group in an experiment that "gets" the independent variable |
| control group | the group in an experiment that does not "get" the independent variable |
| fair test | an experiment in which only one variable was changed as the independent variable |
| quantitative data | data that is numerical |
| qualitative data | data that is descriptive or observational |
| observation | using the five senses or a tool (microscope, ruler, etc.) to collect information |
| data | information |
| inference | conclusion based on your observations |
| variable | something that can change or "vary" in an experiment |