| A | B |
|---|
| absolute zero | the lowest temperature possible |
| accepted value | correct value based on relaible references |
| accuracy | a measure of how close a measurement comes to the actual or true value |
| Celsius scale | temperature scale on which the freezing point of water is 0 C and the boiling point of water is 100 C |
| density | the ratio of the mass of an object to its volume |
| error | the difference between the accepted value and the experimental value |
| experimental value | the value measured in the lab |
| hydrometer | a device used to measure specific gravity |
| International System of Units (SI) | a revised version of the metric system |
| Kelvin scale | the temperature scale in which the freezing point of water is 273 |
| kilogram | SI base unit for mass |
| liter | SI base unit for volume |
| meter | SI base unit for length |
| percent error | the percent that a measured value differs from the accepted value |
| precision | a measure of how close a series of measurements are to each other |
| qualitative measurement | a measurement that is nonnumerical and descriptive in nature |
| quantitative measurement | measurement that has a definite numerical form with units |
| scientific notation | a number written as a product of two numbers: a coefficient and an exponent |
| significant figures | all of the digits in a measurement that are known plus one that is estimated |
| specific gravity | a comparison of the density of a substance to a reference substance |
| temperature | a measure of the average kinetic energy of the particles of a substance |
| volume | the space occupied by matter |
| weight | a force that measures the pull of gravity on an object |
