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Ch 1 Science Skills

Vocabulary Review

TermDefinition
precision Gauge of how exact a measurement is
significant figure All the digits of a measurement, plus the last which is estimated
controlled experiment Experiment with only one manipulated variable
thermometer Instrument to measure temperature
hypothesis proposed answer to a question
conversion factor Ratio of equivalent measurements that is used to convert a quantity from one unit to another
direct proportion relationship between 2 variables that their ratio is constant
scientific law statement that summarizes a pattern found in nature
length straight line distance between 2 points
responding variable variable that changes in response to a change in the manipulated variable
scientific notation way of expressing a number as the product of a number between 1-10 and a power of 10
scientific theory well tested explanation for a set of observations or experimental results
observation information obtained by the senses
inverse proportion relationship in which one variable increases while the 2nd variable decreases
mass the amount of matter in an object
volume the amount of space on object occupies
accuracy closeness of a measurement to the true value of what is measured
density ratio of a material's mass to its volume
slope the steepness of a line
chemistry study of composition, structure, properties, and reactions of matter
physics study of matter and energy, and the interactions between the 2 through forces and motion
manipulated variable variable that causes a change in another variable
Created by: stephanie.kehler
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