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Test 1

Chemistry the study of matter and the changes that it undergoes
Substance matter that has a definite and uniform composition
Mass measurement that reflects the amount of matter
Weight measure of the amount of matter and of the effect of Earth's gravity on that measure
Scientific method systematic approach used in scientific study to verify the work of others
Qualitative data observations of the senses
Quantitative data observations of measurements
Hypothesis tentative explanation of what ha been observed
Experiment set of controlled observations that test the hypothesis
Independent variable variable that will change
Dependent variable variable that has a value change in response to a change in the independent variable
Control Standard for comparison
Scientific law relationship in nature that is supported by many experiments
Base unit defined unit in a system of measurement
Derived unit combination of base units
Density physical property of matter
Dimensional analysis systematic approach to problem solving that uses conversion factors to move from one unit to another
Conversion factor ratio of equivalent values having different units
Accuracy how close a measured value is to an accepted value
Precision how close a series of measurements are to one another
Phase change transition of matter from one state to another
Mixture combination of two or more pure substances where each substance retains its chemical properties
Solution homogeneous mixture
Homogeneous mixture mixture that has constant composition and is blended together; cannot separate
Heterogeneous mixture does not blend smoothly; is able to be separated
Element pure substance that cannot be separated into simpler substances by physical or chemical means
Compound made up of two or more different elements that are chemically combined
Created by: Jaspergem