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Measurement/Scientif

Unit 1:Measurement and the Scientific Method

QuestionAnswer
Scientific Law Statement about what happens in nature that seems to be true all the time; does not explain why/why not something happens
Scientific Theory Explanation of things or events based on knowledge gained from many observations and investigations
Standard (standard measure)Unit of measurement Exact quantity people agree to use for comparison
Metric system Based on multiples of 10. Easier to use then inches, etc...
Standard unit of measurement for Length/Distance (How long/far is it?) Meter: millimeter (mm), centimeter (cm), meter (m), kilometer (km)
Definition of Volume (v) Amount of space an object takes up; Volume= length x width x height; unit = cubic centimeters (cm3 or cc3)
Common unit for Volume of liquids liters and milliliters
Mass quantity of matter in an object
Unit of measure for mass grams (g) or kilograms (kg)
weight gravitational force exerted on an object
Density mass per unit volume of a material
Constant In an experiment, a variable that does not change when other variables change
Control Standard used for comparison of test results in an experiment
variable Something that changes
Dependent variable factor that changes as a result of changes in the other variables
Independent variable Something used to change an experiment (for example: fertilizer on Plant #1 but not on Plant #2)
Created by: klkaufman
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