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10 cards from this deck
Primary working document; complete record of everything you do
Variable you control and deliberately change
Variable you measure (depends on independent variable)
Variables kept constant to prevent interference with results
6-10 data points
How close measurement is to the true value
Variability/spread in measurements; smaller spread = higher
Limit of reading, device precision, measurand variation
Half the smallest division on the scale
One whole division (device may round up or down)
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