| A | B |
|---|
| control variable | the variable that does not change |
| dependent variable | the variable that changes as a result of a change in the independent variable, the variable that is measured |
| forceps | used to pick up small objects |
| graduated cylinder | used to make accurate measurements of liquid volumes |
| gram | metric measurement for mass |
| independent variable | variable that is changed in an experiment, the variable that is being studied |
| invalid | not valid, not correct, not true |
| liter | basic unit of volume in the metric system |
| meter | the basic SI unit of length |
| microscope slide | a small flat rectangular piece of glass on which specimens can be mounted for microscopic study |
| microscope | an instrument that makes small objects look larger |
| petri dish | used to culture bacteria; used to hold small objects |
| pipette | an instrument used for transferring small amounts of liquid from one container to another |
| triple beam balance | tool used to measure mass |
| valid | well supported by facts; true |
| beaker | A wide cylindrical glass vessel with a pouring lip, used as a laboratory container and mixing jar. |
| vial | a small closed or closable vessel especially for liquids |
