| A | B |
| physical science | the study of matter and energy;combines physics and chemistry |
| specialization | studying or working in one part of a subject |
| hypothesis | a suggested solution to a problem |
| data | information |
| scientific method | a model or guide used to gather information and solve problems |
| meter | the basic metric unit of length |
| unit | amount used to measure something |
| kilogram | the basic metric unit of mass |
| mass | the amount of matter in an object |
| weight | a measure of the pull of gravity on an object |