Significant Figures Worksheet
A Grade 10 science worksheet focusing on understanding and applying significant figures in measurements and calculations.
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Standards
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Significant Figures Practice
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Read each question carefully and provide your answers in the spaces provided. Pay close attention to significant figures in all calculations and measurements.
1. Determine the number of significant figures in each of the following measurements:
a. 0.00345 kg
b. 1200. m
c. 56000 L
d. 2.0050 g
2. Round the following numbers to the specified number of significant figures:
a. 12.345 to 3 significant figures:
b. 0.08765 to 2 significant figures:
c. 500.1 to 1 significant figure:
d. 9987 to 2 significant figures:
3. What is the result of 3.45 cm + 2.1 cm, expressed with the correct number of significant figures?
5.55 cm
5.6 cm
5.5 cm
6 cm
4. Calculate the area of a rectangle with length 12.5 cm and width 3.0 cm. Express your answer with the correct number of significant figures.
37.5 cm²
38 cm²
37.50 cm²
37 cm²
5. What is the length of the object shown in the diagram, reported with the correct number of significant figures?
6. All non-zero digits are always significant.
True
False
7. Trailing zeros are always significant if there is a decimal point in the number.
True
False
8. A student measures the mass of a substance as 15.3 g and its volume as 5.0 cm³. Calculate the density of the substance, reporting your answer with the correct number of significant figures. Show your work.