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What is a scientific theory?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
In an experiment, a sample of granite, limestone, marble, and sandstone each had a constant supply of water running over them for 96 hours. The rocks were then checked for signs of erosion. What was the purpose of this experiment?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
Any condition that can be changed in an experiment is called a variable. Which of these best explains why there should only be one variable changed in an experiment?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
A scientist experiments with lab rats in a controlled experiment about how the amount of exercise affects the body mass of lab rats. What is the independent variable of the experiment?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
What does repetition in science experiments refer to?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
If an experiment is a controlled experiment, how many variables are intentionally changed?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
How many independent variables does an experiment have?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
What is an independent variable in an experiment?
only 1
B) Repeating an experiment to test the reliability of the results*
one
An explanation that ties together many hypotheses; explains why.
to allow people to know what caused the observed results
To analyze the effects of weathering on various environments of Florida.
The variable that the researcher manipulates*
amount of exercise
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