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science chapter 1
What is physical science?
| Question | Answer |
|---|---|
| Science | a way of learning the natural world through observations and logical reasonings |
| Observing | the process of using one or more of your senses to gather information |
| qualitative observations | an observation that deals with characteristics that are not expressed in numbers |
| Quantitative observations | an observation that deals with a number or amount |
| inferring | the process of making a inference, an interpretation based on observations and prior |
| predicting | the process of forecasting what will happen in the future based on past experience or evidence |
| chemistry | the study of the properties of matter and how matters change |
| physics | the study of matter and energy and how they interact |
| scientific inquiry | the ongoing process of discovery in science |
| hypothesis | a possible explanation for a set of observation or answer to a scientific question |
| variables | a factor that can change in an experiment |
| manipulated variable | the one factor that a scientist changes during the experiement |
| responding variable | the factor that changes as a result of changes to the manipulated or independent, variable in an experiment |
| data | facts, figures, and other evidence gathered through observations |
| communicating | the process of sharing ideas with others through writing and speaking |
| scientific law | a statement that describes what scientists expect what happen every time under a particular set of situations |
| scientific theory | a well tested explanation for a wide range of observations or experimental results |
| technology | a way of changing the natural world to meet human needs or solve practical problems |
| engineer | a person who is trained to use both technological and scientific knowledge to solve practical problems |
| brainstorming | a process in which group members freely suggests any creative solutions that come to mind |
| constraint | any factor that limits or restricts a design |
| trade-off | an exchange in which one benefit is given up in order to obtain another |
| prototype | a working model used to tests a design |
| troubleshooting | the process of analyzing a design and finding a way to fix it |
| systems | a group of related parts that work together |