| A | B |
| technology | applying science to solve problems |
| constant | a factor that doesn't change in an experiment |
| control | a standard for comparison |
| dependent variable | a factor whose value changes and is measured |
| experiment | an organized method of testing a hypothesis |
| hypothesis | a testable prediction |
| independent variable | a factor that is adjusted by the experimenter |
| model | a symbolic representation to make something understandable |
| observation | the use of human senses to gather information |
| physical science | the study of matter and energy |
| scientific law | describes but doesn't explain a pattern in nature |
| theory | the most logical explanation of why things work the way they do |