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Ch.1 Matter and MeasurementsWorksheetSee all chapters

# Significant Figures: Precision in Measurements

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Sections
What is Chemistry?
The Scientific Method
Classification of Matter
States of Matter
Physical & Chemical Changes
Chemical Properties
Physical Properties
Intensive vs. Extensive Properties
Temperature (Simplified)
Scientific Notation
SI Units (Simplified)
Metric Prefixes
Significant Figures (Simplified)
Significant Figures: Precision in Measurements
Significant Figures: In Calculations
Conversion Factors (Simplified)
Dimensional Analysis
Density
Specific Gravity
Density of Geometric Objects
Density of Non-Geometric Objects

Significant Figures are used to discuss the level of precision in any measurement.

###### Recording Measurements

Concept #1: The more significant figures in a measurement then the more precise it is.

Example #1: Determine the number of significant figures involved in measuring the length of the square.

a) 3 cm

b) 3.2 cm

c) 3.20 cm

d) 3.200 cm

Practice: Read the length of the pencil to the correct number of significant figures. Practice: What is the correct reading for the liquid in the burette provided below? 