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Chapter 1 Vocabulary
Tools of the Chemist
16
Science
8th Grade
09/06/2011

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Term
Physical Science
Definition
study of matter, energy, and the changes they undergo
Term
Qualitative Observation
Definition
descriptions that don't revolve around measurements
Term
Quantitative Observation
Definition
measurements
Term
Chemistry
Definition
study of the properties of matter and how matter changes
Term
Physics
Definition
study of matter and energy and how they interact
Term
Hypothesis
Definition
possible answer to a scientific question or explanation for a set of observations
Term
Scientific Inquiry
Definition
different ways scientists study the natural world
Term
Variable
Definition
a factor that can change during an experiment
Term
Manipulated (Independent) Variable
Definition
variable that is changed
Term
Responding (Dependent) Variable
Definition
expected to change based on the parameters of the experiment
Term
Controlled Experiment
Definition
investigation in which all variables except one remain the same
Term
Data
Definition
facts, figures, and other evidence gathered through observations
Term
Communicating
Definition
sharing ideas and conclusions with others in speaking and writing
Term
Scientific Theory
Definition
well-tested explanation for a wide range of observaitons or experimental results
Term
Accuracy
Definition
whether or not an answer is correct
Term
Precision
Definition
how close to the actual answer the result is
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