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Asking Testable Questions

 

Variables

 

 

In general, data tables should have the following format:

Independent Variable

(What you modify)

Dependent Variable (What you Measure)

Average of the Trials

Trial 1

Trial 2

Trial 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For example, if you are interested in how take-off time is affected by the mass of a model rubber-powered plane, your table would like the following:

Mass (g) of a rubber-powered plane

Time (seconds) to Take-off

Average Time (seconds) to Take-off

Trial 1

Trial 2

Trial 3

15 g

 

 

 

 

18 g

 

 

 

 

21 g

 

 

 

 

 

 

 

 

 

 

 

 

When making graphs, the independent variable should be placed along the bottom of the x-axis. The dependent variable should be placed on the side of the y-axis.

 

 

 

 

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