| A | B |
|---|
| base unit | represents a measurement based on an object in the real world |
| derived unit | unit made a combination of base units (ex: density, area, volume) |
| kelvin | temperature scale with no zero |
| celsius | temperature scale most often used in science |
| kilogram | unit of mass; 1000 grams |
| liter | unit of volume; 1000 milliliters |
| meter | unit of length; 1000 millimeters and 100 centimeters |
| conversion factor | ratio made from equivalent values of different units |
| dimensional analysis | problem solving strategy using ratios |
| scientific notation | used to represent very large or very small numbers |
| accuracy | closeness of a measurement to a given value |
| precision | closeness of a group of measurements to each other |
| error | deviation of a measurement from the given value |
| percent error | how far a measurement is off expressed as a percent |
| significant figure | system used to represent the precision of a measurement |
| second | SI unit of time |
| SI unit | units used in science; Systeme Internationale |
| deci- | metric prefix meaning .1 (one tenth) |
| centi- | metric prefix meaning .01 (one hundredth) |
| milli- | metric prefix meaning .001 (one thousandth) |
| kilo- | metric prefix meaning 1000 |
| density | derived unit made from mass and volume |
