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TAKS Vocabulary
TAKS
20
Science
8th Grade
03/23/2011

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Term
scientific methods
Definition
a series of steps that scientists use to answer questions and solve problems
Term
observations
Definition
when you perceive something with one or more of your sensory organs
Term
hypothesis
Definition
possible answer to a question
Term
controlled experiment
Definition
an investigation that tests only one factor at a time
Term
variable
Definition
the factor in a controlled investigation that changes
Term
data
Definition
information collected during an investigation
Term
control variable
Definition
used for comparison or check for change
Term
independent variable
Definition
what is changed in an experiment
Term
dependent variable
Definition
the measure of change
Term
trend
Definition
a general inclination or tendency
Term
extrapolate
Definition
to infer or estimate informatin by projecting from the known data
Term
trend
Definition
general inclination or tendency
Term
extrapolate
Definition
to infer or estimate information by projecting from the known data
Term
infer
Definition
to draw a conclusion using evidence or premises
Term
Quantitative
Definition
data is given in numbers
Term
Qualtative
Definition
data is given as a description
Term
model
Definition
a representation of an object or a system
Term
theory
Definition
is a unifying explanation for a large group of hypotheses and observations that have been supported by testing
Term
bias
Definition
is a point of view that is highly personal or based on a belief that is not supported by evidence
Term
evidence
Definition
proof or information on which conclusion can be based
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