| A | B |
|---|
| scientific method | an organized set of investigative procedures |
| hypothesis | a possible explanation for a problem using what you know and observe |
| experiment | tests the effect of one thing on another using controlled conditions |
| Variable | a quantity that can have more than a single value |
| dependent variable | changes according to the changes in the other variables |
| independent variable | the variable that you change to see how it will affect the dependent variable |
| constant | a factor that does not change when other variables change |
| control | a standard by which the test results can be compared |
| bias | when what the scientist expects changes how the results are viewed |
| model | represents an idea, event or object to help people understand it |
| theory | an explanation of things or events based on knowledge gained from many observations and investigations |
| scientific law | a statement about what happens in nature and that seems to be true all the time |
| technology | the application of science to help people |
| standard | an exact quantity that people agree on to compare measurements |
| SI | standards that are accepted universally and understood by scientists throughout the world |
| volume | the amount of space occuppied by an object |
| mass | a measurement of quantity of matter in an object |
| density | mass per unit of volume |
| graph | visual display of information or data |
