Major Funding The Laura Moore Cunningham Foundation



Measure: Glossary

A

accurate
correct, exact, with little or no error
air pressure
the weight of air pressing down on the earth
approximate
not quite exact, close to what is needed

B

biologist
a scientist who studies living things

C

calculate
to solve or figure out using math, to compute
calibrate
to check or adjust a tool for accuracy by comparison with a standard
consume
to use up
current
flow of electric charge
customary units
the measurement system used in the United States, with inches, feet, pounds, quarts, gallons

D

derived
to come from a particular source
device
an invention or machine used to perform a certain purpose
digital
showing information in electronic numerical form

E

error
inaccuracy in a scientific measurement
exact
correct, specific, accurate, no more and no less
exclusively
only; including no others

F

fraction
a part of a single unit

G

general
broad, not detailed or specific

H

hand span
distance from the tip of the thumb to the tip of the little finger with the fingers outstretched

I

international trade
buying and selling goods between different countries

M

mass
amount of matter in an object
metric system
system of measurement based on the number ten
multiple
more than one

N

nautical mile
equal to 1.15 land miles
nonstandard unit
a measuring unit that may vary in length or weight, such as a sock, a foot, a handspan, or a marble

P

population
the number of organisms of a species in a given area
precise
obtaining a high degree of sameness when taking repeated measurements of the same thing
prefixes
a meaningful word part attached to the beginning of an existing word
property
attribute, characteristic, or trait of a substance, such as size, color or weight

Q

quantity
a number that describes how much or how many of something

R

rate
a number measured in relation to another measurement, as in meters per second or miles per hour
round
to simplify a number so that it is close to the actual value but not exact

S

standard unit
a measuring unit that is always the same and provides a consistent reference: an inch, mile, meter, kilometer, second, etc.
stern
the rear part of a boat
superior
much better than others, higher in quality

U

unit of measure
a quantity or object used as a standard; how much makes up "1" of the measurement.

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