| A | B |
|---|
| standard | In measurement, an exact quantity that everyone agrees to use as a comparison: for examplea centimeter, meter, kilogram, cubic decimeter, milliliter, liter, kelvin, joule, and so on. |
| SI | International System of Units: standard easyto use, worldwide system of measurement based on powers of 10. The SI standards are used by all scientists, and are a modern version of the metric system. |
| meter | The SI units of length 110 cm= 1m |
| volume | The amount of space occupied by an object: volume units are found by combining other SI units of length |
| Derived units | UNits of measurementobtained by combining SI units: for example, density is a derived unit formed by dividing an object's mass by it volume |
| liter | The unit of liquid volume (L) that occupies the same volum as a cubic decimeter (dm3) and is slightly larger than a quart |
| mass | A measurement of the amount of matter in a pbject: its Si unit is kilogram |
| kilogram | The SI unit of mass: 1 kilogram (k) =1000 grams (g) |
| density | The mass per unit volume of a material (g/cm3): describes how tightly packed a substance's molecules are. |
| time | The invertal between 2 events: the SI unit for time is the the second |
| Second | The SI unit for time |
| Kelvin | The SI unit of temperature :zero K=absolute zero (the coldest possible temperature -273 degrees Celsius |
| graph | A visual display of information or data- such as line graph, bar graph, and circle graph - organized to help people interpret, understand, or quickly find information |
| length | In measurement the mdistance between 2 points |
