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Phys. Science Chpt. 1
N/A
17
Science
8th Grade
09/04/2012

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Term
Physical Science
Definition
Study of matter, energy, and changes they undergo.
Term
Chemistry
Definition
The study of of the properties of matter and how matter changes.
Term
Physics
Definition
The study of matter and energy and how they interact.
Term
Qualitative observation
Definition
An observation dealing with characteristics that are not expressed in numbers.
Term
Quantitative observation
Definition
An observation with a number or amounts.
Term
Scientific Inquiry
Definition
The ongoing process of discovery in science.
Term
Hypothesis
Definition
A possible explanation for a set of observations or answer to a scientific question.
Term
Variable
Definition
A factor that can change in an experiment.
Term
Manipulated variable
Definition
The one factor that a scientist changes during an experiment.
Term
Responding variable
Definition
The factor that changes as a result to the manipulated, or independent variable.
Term
Controlled experiment
Definition
An experiment in which only one variable is change at a time.
Term
Data
Definition
Fact, figures, and other evidence gathered through observations.
Term
Communicating
Definition
The process of sharing ideas with others through writing and speaking.
Term
Scientific law
Definition
A statement that describes what scientists expect to happen every time under a particular set of conditions.
Term
Scientific theory
Definition
A well-tested explanation for a wide range of observations or experimental results.
Term
Accuracy
Definition
The extent of which a given measurement agrees with the standard value for that measurement.
Term
Precision
Definition
The degree to which farther measurements or calculations show the same or similar results.
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