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Elementary School: 3rd, 4th & 5th Grade
Science
Key/Independent Variable
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Q.1
You decide these values at the planning stage of your investigation.
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Dependent variable only
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Control variables only
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Dependent and control variables
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Key independent variable and control variables
Q.2
The key variable is...
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the variable that is changed by the experimenter
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the variable that is controlled by the environment of the experiment
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the variable that is measured by the experimenter
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the variable that is always decreased in value
Q.3
In graphs, the key variable is always plotted on the...
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x axis
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y axis
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both axes
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does not matter
Q.4
I think that as the mass increases, the speed will decrease. Which is the key variable?
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Mass
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Speed
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Increase
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Decrease
Q.5
If we change the value of a factor affecting the experiment, it must be the ...
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key variable
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a controlled variable
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dependent variable
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an anomaly
Q.6
I think that as we increase the temperature, the number of germinating seeds will increase. The dependent variable is ...
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temperature
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number of seeds
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increase
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decrease
Q.7
A variable in an experiment is...
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a factor we can change or measure or control
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a factor in the environment
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something which changes
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something which stays the same
Q.8
The key variable is the factor we are...
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changing
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keeping constant
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ignoring
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measuring
Q.9
Controlled variables are always kept...
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the same
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different
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larger
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smaller
Q.10
Uncontrolled variables may make the results...
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unreal
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accurate
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unreliable
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true
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