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Quiz 1 Vocabulary Terms
Ms Wright
8
Science
7th Grade
01/22/2009

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Term
science
Definition

The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested.

Term
scientific method
Definition
A series of steps followed to solve problems.
Term
hypothesis
Definition
An explanation that is based on prior scientific research or observation and that can be tested.
Term

control

Definition
The group in an experiment that does not show the variable being tested so comparisons can be done.
Term
controlled experiment
Definition
An experiment that tests only one factor at a time by using a comparison of a control group with an experimental group.
Term
variable
Definition
A factor that changes in an experiment in order to test a hypothesis.
Term

dependent variable

Definition
A variable whose value can be found from one or more other variables whose value is known first.
Term
independent variable
Definition
A variable whose values are specified first or before an experiment is performed and are used to find values  of an expression, another variable, or a function that depends on the first variable.
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