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nature of science
unit 1
| Term | Definition |
|---|---|
| law | description of a specific relationship under given conditions in the natural world. |
| theory | a well-supported explanation of nature. |
| empirical evidence | all the measurements and data scientists gather in support of a scientific explanation. |
| experiment | An experiment is an organized procedure to study something under controlled conditions. |
| hypothesis | a testable idea or explanation that leads to scientific investigation |
| dependent variable | or outcome variable, is the factor that changes as a result of manipulation of one or more independent variables. |
| observation | the process of obtaining information by using the senses. |
| independent variable | An independent variable, or test variable, is the factor that is deliberately manipulated in an investigation. |
| data | information gathered by observation or experimentation that can be used in calculating or reasoning. |
| model | a visual or mathematical representation of an object or system. |
| engineering | Engineering is the use of scientific and mathematical knowledge to solve practical problems. |
| technology | Technology includes the use of tools, materials, or processes to meet human needs |
| Prototype | special models built to test a product. |
| trade-off | A trade-off means accepting risks in exchange for benefits or giving up one benefit to gain another. |
| life cycle analysis | A life cycle analysis is an evaluation of the materials and energy used for the manufacture, transportation, sale, use, and disposal of a product |
| pugh chart | A Pugh chart is a table used to compare the features of multiple items. |
| risk-benefit analysis | A risk-benefit analysis compares the risks, or unfavorable effects, to the benefits, or favorable effects, of a decision or technology. |