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How can you identify the Independent (Manipulated) variable?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
What is the purpose of a control in an experiment?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
Mary wants to test how different fertilizers affect the volume of roots a rosebush grows. What is Mary's DV?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
Why is it important to control your variables?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
In an experiment using human subjects, why is it important to have lots of people in the study?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
Why are repeated trials important?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
Which data would be best represented with a bar graph?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
To represent the volume of roots in her rosebushes over two weeks, what is the best graph for Mary to use?
It mirrors the natural state and is used as a comparison for the experimental results
All of these
root volume
How many 7th graders prefer each color of Starburst
To make sure errors in the experiment do not ruin overall data
It's effect is what's being tested
line graph
To have enough data to create an average that helps eliminate the effect of variation in humans
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