| A | B |
| data | any and all information that scientists gather when trying to answer a question |
| observation | using one or more of the five senses to perceive an object or event |
| sampling | using a small part to represent an entire population |
| hypothesis | a statement that explains scientists observataions that can be tested |
| prediction | a statement made in advance that states the results that will be obtained by testing a hypothesis |
| experiment | the process of testing a hypothesis or prediction by gathering data under controlled conditions |
| controlled experiment | an experiment based on the comparason of a control group with an experimental group |
| independent variable | an experimentally manipulated variable |
| control group | Group in an experiement that will be compared to experimental group. |
| experimental group | Group whose independent variable has been changed. |
| model | an explanation supported by data. Can be verbal visual or mathematical. |
| inference | a conclusion made on the basis of facts rather than on observations |
| theory | a broad and comprehensive statement thought to be true |
| dependent variable | the variable that is measured in both control and experimental group |