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What is Science?
vocabulary for chapter 1
18
Science
7th Grade
09/13/2012

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Term
science
Definition
a way of learning about the natural world
Term
scientific theory
Definition
an attempt to explain a pattern observed repeatedly in the natural world
Term
scientific law
Definition
a rule that describes a pattern in nature
Term
system
Definition
a collection of structures, cycles, and processes that relate to and interact with each other
Term
life science
Definition
study of living systems and the ways in which they interact
Term
Earth science
Definition
the study of Earth systems and the systems in space
Term
physical science
Definition
the study of matter and energy
Term
technology
Definition
practical use of science to help people
Term
hypothesis
Definition
a reasonable and educated possible answer based on what you know and what you observe
Term
infer
Definition
to draw a conclusion based on what you observe
Term
controlled experiment
Definition
changing one factor and observing its effect on another while keeping all other factors constant
Term
variables
Definition
factors that can be changed in an experiment
Term
independent variable
Definition
the variable that can be changed
Term
dependent variable
Definition
changes as a result of a change in the independent variable
Term
constant
Definition
variable that is not changed in an experiment
Term
model
Definition
any representation of an object or an event used as a tool for understanding the natural world
Term
critical thinking
Definition
combining what you already know with the new facts that you are given to decide if you should agree with something
Term
data
Definition
observations, can be recorded in the form of descriptions, tables, graphs, or drawings.
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