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Ch. 1 Quiz Review
Science chapter one test
24
Science
8th Grade
11/16/2010

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Cards

Term
Manipulated (independent) variable
Definition
the one factor a scientist changes during an experiment (such as the distance the light is from a marker)
Term
Responding (dependent) variable
Definition
the factor that changes the result of a manipulated variable (such as the height of the light on the wall)
Term
qualitative observations
Definition
recording notes in a journal or log
Term
data
Definition
facts, figures, and other evidence gathered through obsevations
Term
quantitative observations
Definition
using measurements for data
Term
theories
Definition
well-tested explanations for a wide range of observations or experimental results
Term
conclusion
Definition
states whether or not the data/information supports the hypothesis
Term
model
Definition
a picture, diagram, or image that represents and object
Term
controlled experiments
Definition
an experiment in which only ONE variable is manipulated at a time
Term
hypothesis
Definition
a possible answer to a scientific question or observation
Term
parameter
Definition
a factor that can be measured in experiments
Term
estimate
Definition
an approximation of a number based on reasonable assumptions
Term
accuracy
Definition
how close a measurement is to the true value/data
Term
reproducibility
Definition
how close a group of measurements are to each other
Term
precision
Definition
how close a GROUP of measurements are to each other
Term
linear graph
Definition
a line graph where the line is straight
Term
nonlinear graph
Definition
a graph where the line is NOT straight
Term
slope
Definition
the steepness of a line on a graph (vertical change divided by the horizontal change)
Term
origin
Definition
point where two axes cross each other
Term
scientific inquiry
Definition
the ongoing process of the discovery of science
Term
communicate
Definition
process of sharing of ideas with others
Term
control
Definition
to test or verify by a parallel experiment or other standard of comparison
Term
measurements
Definition
dimensions, a quantity of something
Term
variable
Definition
something that can change in an experiment
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