| A | B |
| theory | most logical explanation for events that happen in nature |
| law | summarizing statement of observed experimental facts that has been tested many times and is generally accepted as true |
| zoology | study of animals |
| botany | study of plants |
| ecology | study of relationships and interactions of living things with one another and with their environment |
| microbiology | study of microorganisms |
| microorganism | microscopic organism |
| scientific method | systematic approach to problem solving |
| hypothesis | suggested solution to a problem |
| variable | factor being tested in an environment |
| control experiment | experiment done in exactly the same way as another experiment, but without the variable |
| data | recored observations and measurements |