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Unit 1
Science, Technology, and Engineering
| Term | Definition |
|---|---|
| Science | the knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested |
| Empirical evidence | the observations, measurements, and other types of data that people gather and test to support and evaluate scientific explanations |
| Experiment | an organized procedure to study something under controlled conditions |
| Observation | the process of obtaining information by using the senses |
| Hypothesis | a testable idea or explanation that leads to scientific investigation |
| Prediction | a statement about what will happen under certain conditions |
| Independent variable | in a scientific investigation, the factor that is deliberately manipulated |
| Dependent variable | in a scientific investigation, the factor that changes as a result of manipulation of one or more independent variables |
| Constant | a condition or factor that is assumed to have one value, or remain unchanged, throughout a particular investigation |
| Data | information gathered by observation or experimentation that can be used in calculating or reasoning |
| Repetition | the conduction of an investigation multiple times |
| Replication | to conduction of an investigation by multiple scientists |
| Experimental error | errors in measurement due to imprecise tools or by rounding during calculations |
| Peer review | process where other scientists evaluate the methods used in a study and the conclusions reached by the original scientist |
| Measurement | a quantitative description of something that includes a number and a unit, such as 42 meters |
| SI units | standard units used by scientists worldwide (usually based on factors of 10) |
| Derived units | units that are calculated from other base units |
| Scientific notation | a method of expressing a quantity as a number multiplied by 10 to the appropriate power |
| Accuracy | a description of how close a measurement is to the true value of the quantity measured |
| Precision | how close two or more measurements are to each other |
| Mean | the number obtained by adding up the data for a given characteristic and dividing this sum by the number of individuals |
| Model | a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept |
| Simulation | a method that is used to study and analyze the characteristics of an actual or theoretical system |
| 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 |
Created by:
CSchveder74
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