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8th Grade Chapter 1
Introduction to Physical Science
| Question | Answer |
|---|---|
| brainstorming | the process in which group members freely suggest any creative solutions to a problem |
| goal | the purpose of a technological system |
| prototype | a working model used to test a design |
| observing | using one or more of your senses to gather information |
| scientific theory | a well-tested explanation for a wide range of observations or experimental results |
| technology | how people change the world around them to meet their needs or to solve practical problems |
| variable | a factor that can change in an experiment |
| inferring | when you explain or interpret the things you observe |
| troubleshooting | identify the cause of any problems in a design |
| constraint | a factor that limits or restricts a design |
| responding or dependent variable | the variable that is expected to change because of another variable |
| engineer | a person who is trained to use both technology and scientific knowledge to solve practical problems |
| data | measurements, qualitative observations, and quantitative |
| output | the result or product of a technological system |
| manipulated or independent variable | the one variable that is purposely changed to test a hypothesis |
| chemistry | the branch of physical science that studies the properties of matter and changes in matter |
| science | An organized way of using evidence to learn about the natural world |
| technology | the application of science for practical purposes |
| chemistry | the study of the properties of matter and how matter changes |
| physics | the science of matter and energy and their interactions |
| scientific method | a method of investigation involving observation and theory to test scientific hypotheses |
| hypothesis | a proposal intended to explain certain facts or observations, an educated guess |
| manipulated variable | factor in an experiment that a scientist purposely changes; also known as independent variable |
| responding variable | factor in an experiment that a scientist wants to observe, which may change in response to the manipulated variable; also known as a dependent variable |
| controlled experiment | a test of the effect of a single variable by changing it while keeping all other variables the same |
| scientific theory | An explanation supported by many tests and accepted by a general consensus of scientists. |
| scientific law | a rule that describes a pattern in nature, a statement that describes what scientists expect to happen every time under a particular set of conditions |
| variables | are things you can change |
| system | a group of related parts that work together |
| inferring | to explain the things you observe |
| trade-off | an exchange in which one benefits is given up in order to obtain another |
| predicting | the process for forecasting what will happen in the future based on evidence |
| communicating | the process of sharing ideas with others thru writing and speaking |
| scientific inquiry | the ongoing process of discovery in science |
| quantitative observation | an observation that deals with a number or amount |
| qualitative observation | this deals with characteristics that are not expressed in numbers |
Created by:
Mrs. Gordon
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