Final Actual Exam Newest 2025/2026
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A controlled experiment tests only ____ factor at a time. -
ANSWER-one
Allows the scientist to change a variable. - ANSWER-
experimental group
An experimental group allows the scientist to change a
_______. - ANSWER-variable
,A factor or feature in an experiment that changes -
ANSWER-variable
The variable that the scientist changes - ANSWER-
independent The 5 Steps - ANSWER-1. Make an
Observation 2. Develop a Hypothesis 3. Make an
Experiment 4. Carry out the Experiment and Analyze
results 5. Draw Conclusions
Control Group - ANSWER-Part of an experiment that
serves as a basis of comparison to determine the effects
of the variable (e.x. plants that don't receive miracle-gro)
,Constants - ANSWER-Factors in the experiment that
remain the same for all parts of the experiment (e.x. type
of plant, type of soil, amount of liquid)
Experimental Group - ANSWER-The set-up that contains
the independent variable. Usually a large sample is
needed to make sure that results are correct (e.x. for
average height of 14 year old boys, measuring 100 people
is more accurate than measuring 10)
Independent Variable - ANSWER-In the x-axis, the
variable being acted upon (e.x. adding miracle grow)
, Dependent Variable - ANSWER-In the y-axis, the variable
that changes as a result of of the independent variable.
This is what you measure and observe in the experiment
(e.x. the height of the plants)
Scientific Theory - ANSWER-A well-supported hypothesis
that has been tested many times, and has not been found
to be incorrect (e.x. Darwin's theory of evolution by natural
selection)
Part of the experiment that is changed by the researcher
to test the hypothesis - ANSWER-independent variable