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Nature of science
unit 1
| Term | Definition |
|---|---|
| empirical | The observations measurements , and other types of data that people gather and test to support and evaluate scientific explanations |
| theory | A system of ideas that explains many related observations and is supported by a large body if evidence acquired through scientific investigation |
| law | A descriptive statement or equation that reliably predicts events under certain conditions |
| experiment | An organized procedure to study something under controlled conditions. |
| hypothesis | A testable idea or explanation that leads to scientific investigation. |
| dependent variable | In a scientific investigation, the a factor that changes as a result of manipulation of one or more independent variables |
| observation | The process of obtaining information by using the sense; the senses. |
| variable | A factor that can change in an experiment, observations , or model. |
| independent variable | In a scientific investigation, the factor that is deliberately manipulated. |
| data | Information gathered by observation or experimentation that can be used in calculation or reasoning |
| model | A pattern, plan, representation , or description designed to show the structure or working of an object, system, or concept. |
| engineering | The application of science and mathematics to solve real-life problems. |
| technology | The application of science for practical purposes; the use of tools, machines, materials, and processes to meet human needs. |
| prototype | A test model of a product. |
| trade-off | The giving up of one thing in return for another, often applied to the engineering design process. |
| risk benefit analysis | The comparison of the risk and benefits of a decision or product. |
| life cycle analysis | The evaluation of the materials and energy used for the manufacture, transportation, sale, use, and disposal of a technology |
| Pugh chart | a table used to co pare the features of multiple items, such as technological products or solutions. |