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Plan Fair Tests and Analyze Failure Points
Worksheet
Grade Level
Grade 4
4.59 Plan Fair Tests and Analyze Failure Points
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A class is comparing seed planter wheel diameter. Which plan is fair?
A
Change wheel diameter and seed type together.
B
Change wheel diameter and push distance together.
C
Keep the same soil tray, number of seeds, and push distance, and change only wheel diameter.
D
Use different soil trays and push speeds.
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