Unit 1 Section A Vocabulary Flashcard

filtrate
the liquid collected after filtration
percent recovery
the proportion of sought material recovered in a process
histogram
a graph indicating the frequency or number of instances of particular values (or value ranges) within a set of related data
average
mean
range
the difference between the highest and lowest values in a data set
mean
an expression of central tendency obtained by dividing the sum of a set of values by the number of values in th set; also known as the average value
median
within an ascending or descending set of values, the number that represents the middle value with an equal number of values above and below it
electrical conductivity
the ability to transmit an electric current
direct water use
water consumed by an end user
indirect water use
water consumed in the preparation, production, or delivery of goods and services.
aquifer
a structure of porous rock, sand, or gravel that holds water beneath Earth’s surface
gaseous state
the state of matter having no fixed volume or shape
liquid state
the state of matter with a fixed volume but no fixed shape
solid state
the state of matter having a fixed volume and fixed shape
surface water
water found on Earth’s surface, such as oceans, rivers, and lakes
ground water
water from an aquifer or other underground source

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