| A | B |
|---|
| data | information from which analyses and conclusions can be made |
| controlled experiment | an experiment with two test groups: an experimental group and a control group |
| constant | the factor that is kept the same in a controlled experiment |
| variable | the factor that is changed in a controlled experiment |
| meter | the basic SI unit of length |
| volume | the amount of space occupied by an object or substance |
| cubic meter | the basic SI unit of volume |
| liter | a metric unit of volume |
| mass | the scientific measurement of the amount of matter that an object contains |
| kilogram | the basic SI unit of mass |
| density | the measure of how much mass exists in a given volume |
| scientific notation | the method of expressing a very large or very small number by multiplying a number between 1 and 10 by some power of 10 |
