A farmer wants to test the affects of a pesticide on his peach crop yield, so he sprays an orchard with the pesticide treatment. A second orchard does not receive the pesticide. In the fall, the number of peaches harvested from each orchard is counted. Which of the following is the independent (manipulated) variable in the experiment?(1 point)
Responses
the second orchard
the second orchard
the pesticide
the pesticide
the number of peaches
the number of peaches
the first orchard
the first orchard
the pesticide
A theory(1 point)
Responses
may be revised or replaced.
may be revised or replaced.
is a problem to be solved.
is a problem to be solved.
is always true.
is always true.
is the opening statement of an experiment.
may be revised or replaced.
Which of the following is not included in the design of an laboratory experiment?(1 point)
Responses
Problem statement
Problem statement
Conclusion
Conclusion
Materials used
Materials used
Procedure
Conclusion
Scientists form hypotheses from which of the following?(1 point)
Responses
prior knowledge.
prior knowledge.
logical inferences.
logical inferences.
informed, creative imagination.
informed, creative imagination.
all of the above
all of the above
A scientist finds that her hypothesis is not supported by the data she gathered as a result of her experiment. What conclusion can she reach?(1 point)
Responses
The data are incorrect.
The data are incorrect.
Her observations were biased.
Her observations were biased.
The data do not support the hypothesis.
The data do not support the hypothesis.
The hypothesis is wrong.
The data do not support the hypothesis.
[This iYou suggest that the absence of water could slow the growth of mold on bread slices. This is a(an)
s the stem.](1 point)
Responses
hypothesis.
hypothesis.
conclusion.
conclusion.
experiment.
experiment.
analysis.