| A | B |
| scale | instrument used to measure mass |
| graduated cylinder | instrument used to measure liquid volume accurately |
| beaker | instrument used to measure liquid volume-usually in larger quantities than a grad.cylinder |
| thermometer | instrument used to measure temperature |
| metric ruler | instrument used to measure length |
| volume | measure of how much space something occupies |
| mass | measure of how much matter is in an object |
| weight | measurement of the gravitational pull of an object |
| gravity | force that pulls particles of matter toward other particles of matter |
| density | a measurement of how tightly packed matter is in a certain amount of space |
| water displacement | method of measuring the volume of an irregular shaped object |
| inertia | In physics, the tendency of matter to stay at rest unless it is affected by an outside force |
| meniscus | the curved surface of a liquid caused by the behavior of the water molecule |
| constant | any factor in an experiment that remains the same throughout the experiment |
| hypothesis | an educated guess about the relationship between 2 variables |
| variable | any factor in an experiment that changes |
| independent variable | the factor in an experiment that you purposefully change as a part of the design of the experiment |
| dependent variable | the factor in an experiment that responds to the changes you make and the result is measured |
| control | the part of the experiment used as a basis for comparison of the results |
| repeated trials | a repetition of tests for the independent variables in order to increase the data to reduce error in the numbers |