| A | B |
|---|
| area | the extent of a surface |
| controlled experiment | allows for comparison of 2 events that are identical in all but 1 respect |
| data | measurement info. used to describe something |
| density | ratio of mass to volume |
| direct proportion | when 2 variables increase or decrease together |
| English system | system of measurement that originally used sizes of human body parts as referents |
| experiment | re-creation of an event that enables you to gather good info. |
| hypothesis | an educated guess |
| inverse proportion | 1 variable increases while the other decreases |
| kilogram | Metric base unit for mass |
| liter | Metric base unit for volume |
| measurement | comparing an object to a referent |
| meter | Metric base unit for length |
| metric system | the standard system of measurements used by scientists around the world |
| model | used to understand something not directly observable |
| numerical constant | a number without units |
| properties | qualities or attributes of an object |
| psuedoscience | ideas masquerading as real science |
| quantities | a number AND units; measurements |
| ratio | a relationship between 2 numbers |
| referent | a familiar object used to compare to something new |
| scientific law | explanation concerned with wide-ranging phenomena |
| second | Metric base unit for time |
| theory | broad, detailed explanation to guide further experiments |
| unit | a well-define and agreed upon referent |
| variable | a changing quantity represented by a letter or symbol |
| volume | how much space an object occupies |
