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unit 1-section 1

vocab words

Chemistry the composition, structure, properties, and reactions of a substance
Scientific method a method of investigation involving observation and theory to test scientific hypotheses
SI a complete metric system of units of measurement for scientists
Weight a measure of the heaviness of an object
Precision the quality of being sharply defined by virtue of exact detail
Accuracy the closeness with which an observation or a measurement of a variable approximates its true value
Density the concentration of matter, measured by mass per unit volume
Significant figures the first 3 numbers after the decimal point
MSDS (Material Safety Data Sheet) a form with data regarding the properties of a particular substance
Mass the physical volume or bulk of a solid body
Volume the amount of space occupied by a three-dimensional object or region of space, expressed in cubic units
Length the longest dimension of an object, or of the measurement between the two ends
Derived units any of the units of measure derived from combinations of the seven base units and two supplementary units of the International System
Created by: 375princess