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Chapters 1

What is Physical Science?

QuestionAnswer
science a way of learning all about the natural world by gathering information
observing using one or more senses to gather information
qualitative observations descriptions that do not involve numbers or measurements
quantative observations measurements that involve numbers
inferring when you explain your observations based on reasoning from what your already know
predicting making a forecast of what will happen in the future based on past experience or evidence
chemistry the study of the properties of matter and how matter changes
physics the study of matter and energy and how they interact
scientific inquiry refers to the different ways scientists study the natural world
hypothesis a possible answer to a scientific question or explanation for a set of observations
variable factors that can change in an experiment
manipulated variable the variable that is changed in an experiment
responding variable the variable that is expected to change because of the manipulated variable
controlled experiment an investigation in which all variables except one remain the same
communicating sharing ideas and conclusions with others through writing and speaking
data the facts, figures, and other evidence gathered through observations
scientific law a statement that describes what scientists expect to happen every time under a particular set of conditions
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 problems
engineer someone who is trained to use both technological and scientific knowledge to solve practical problems
brainstorming a process in which group members freely suggest 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 test a design
troubleshooting the process of analyzing a design problem and finding a new way to fix it
system having one thing in common; made of parts that work together
Created by: KerriReynolds
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