Physical Science: ch 1 Nature of Science
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Created by:
thsresourceclass on February 20, 2012
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15 terms
Terms | Definitions |
|---|---|
 Physical Science | study of the natural world: matter and energy |
| Scientific Method | 1.problem 2.gather info 3.hypothesis 4.test hypothesis (experiment) 5. Analyze Data 6. Conclusion |
| dependent variable | value changes due to other things (normally the "thing" being tested) |
| independent variable | variable you change to see how it affects the dependent variable |
| constant | a factor that does not change |
| control | the standard for comparision |
| bias | when your expectations change the how you review your results |
| Theory | an explanation of things or events that has not been disproved |
| Law | a statement about what happens in nature and seems to always be true. |
| technology | the application to science |
| standard | the exact quantity that people agree to use compare measurements |
| SI Base Units | length: meter mass: kilogram Time: second electric current: ampere (A) Temperature: Kelvin (K) |
| Line Graph | shows relationships: stock growth, population changes |
| Pie Chart | parts of a whole (%'s) |
| Bar Graph | compare info by counting |
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