| A | B |
| control group | in an experiment, a group that serves as a standard of comparison with another group that it is identical to except for one factor |
| controlled experiment | an experiment in which the control group is compared to an experimental group which are identical except for one factor called the independent variable |
| data | information |
| dependent variable | the responding variable in an experiment |
| experiment | the steps to test a hypothesis |
| experimental group | in an experiment, a group that will test the independent variable to compare it to the control group |
| hypothesis | a possible, testable explanation of observations |
| independent variable | the factor that is being tested in the experiment that you as a scientist can change |
| inference | a prediction based on knowledge but not direct observation of a problem |
| model | a diagram to explain results as depicted by the data |
| observation | using one or more of the five senses to perceive objects or events |
| prediction | stating in advance the results that will be obtained from testing the hypothesis |
| sampling | a technique to collect data by using a small part, to represent an entire population, be sure the group is large and random |
| theory | a statement that is thought to be true with the support of many experiments producing the same results |