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vocabulary

TermDefinition
observation recognizing and noting some FACT to gather information about the world
qualitative observation factual descriptions that do not use numbers
quantitative observation factual descriptions that do use numbers
inference a possible explanation or guess of an observation
prediction make a forecast
classify group by similar characteristics
communication tell others what you know
ruler, meter stick measures distance
graduated cylinder measures liquid volume
triple beam balance, scale measures mass
thermometer measures temperature
meter the base unit of length
liter the base unit of liquid volume
gram the base unit of mass
celsius the base unit of temperature
kilo 1000
centi 1/100
milli 1/1000
hypothesis educated guess
observational investigation when changes are being observed
experimental investigation when a hypothesis is being tested
independent variable the variable that you change, the manipulated variable
dependent variable the result of the effect of the manipulated variable
constant the factors that remain unchanged
control the standard of comparison
fair test an experiment that changes only one variable
repeated trails completing an experiment many times, so that the test is valid (fair)
Created by: 3050610
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