| A | B |
|---|
| hypothesis | an educated guess that tries to answer a question under investigation |
| variable | something that can be changed or varied to find how that change affects other things in the experiment |
| laboratory equipment | these tools include a balance, meter stick, thermometer, hand lens, and graduated cylinder |
| laboratory safety | an important concern in all experiments and field investigations |
| microscope | an instrument that uses a series of lenses to magnify specimens placed on slides |
| telescope | an instrument that uses lenses to magnify distant objects |
| meter stick | a ruler marked in centimeters, used to measure length |
| thermometer | an instrument used to measure temperature |
