| A | B |
| specialization | studying or working in only one part of a subject |
| hypothesis | suggested solution to a problem |
| data | information |
| scientific method | model, or guide used to solve problems and to get information |
| meter | basic SI and metric unit of length |
| unit | amount used to measure something |
| kilogram | basic SI unit of mass |
| mass | amount of matter in an object |
| weight | measure of the pull of gravity on an object |
| density | amount of mass in a given volume |
| liter | basic metric unit of volume |
| volume | amount of spacec something takes up |
| degree Celsius | metric unit of temperature |
| temperature | measure of how hot or cold somthing is |