| A | B |
| bias | a tendency to favor something; prejudice |
| control group | the group in a controlled experiement in which no change is made |
| controlled experiment | an experiment in which all variables, except for the one being tested, are exactly the same |
| dependent variable | the part of an experiment that is changed to test an hyopthesis; the variable that is measured |
| experiment | a series of trials or tests that are done to support or refute a hyptohesis |
| hypothesis | a statement that predicts a relationship between cause and effect in a way that can be tested |
| independent variable | a factor that might influence the dependent variable in an experiment; the factor that is changed |
| observation | any information that is collected with any of the senses |
| experimental group | in a controlled experiment, the set-up in which a factor is changed |
| conclusion | the decision made about the outcome of an experiment; usually based on how well the actual result matches the predicted result |
| data | the results of specific trials or tests completed during experiments |
| theory | an explanation, supported by many observations and or experiments, that can be used to accurately explain related occurrences |
| balance/mass | a tool that measures the mass of an object |
| compound light microscope | a tool that uses more than one lens and a light source to magnify an object |