Below is a table listing all the measurement tools students learned today.
Measurement Sensitivity: A measurement tool that can provide a measurement with more decimal places is said to be more sensitive. Example: a graduated cylinder with graduations that increase in increments of one is more sensitive than a beaker with graduations that increase in increments of ten. Also, a recorded measurement with more decimal places is considered more sensitive than a recorded measurement that has fewer decimal places. Example: a measurement of 2.37 mm is more sensitive than 2.3 mm.
Smallest Interval the Tool Measures (accurate to): To measure with accuracy, there must be a measurement mark on the tool. Example: a centimeter ruler has marks every tenth of a centimeter. This means that a scientist can accurate measure the length of an object that is exactly two and one-tenth (2.1) cm long.
Measurement Must be Recorded to (estimated place value): After a scientist determines an accurate measurement, he or she then must record the measurement by estimating one additional place value. Example: the two and one-tenth (2.1) cm object that was measured in the previous example would be recorded (in a graph, table, or lab report, etc) as two and ten-hundredths (2.10) cm. The 0 in the hundredths place has been estimated.
Measurement Reference Table
|Tool||Used to Measure||Unit||Smallest Interval
the Tool Measures
be Recorded to
(estimated place value)
|Triple Beam Balance||Mass||gram (g)||Tenths||
|Graduated Cylinder||Volume||milliliter (mL)||Ones||Tenths|
|Beaker||Volume||milliliter (mL)||10, 25, or 50||Ones|