| A | B |
|---|
| observation | using the senses to study the world; using tools to collect measurements; examining previous research results |
| data | observations and measurements recorded during an experiment |
| hypothesis | proposed explanation or answer to a scientific question (plural: hypotheses) |
| experiment | process that tests a hypothesis by collecting information under controlled conditions |
| independent variable | condition or factor that is manipulated by a scientist during an experiment |
| dependent variable | experimental data collected through observation and measurement |
| constant | condition that is controlled so that it does not change during an experiment |
| theory | proposed explanation for a wide variety of observations and experimental results |
