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vocab quiz

TermDefinition
Chemistry The study of the composition of matter and the changes that matter undergoes
Hypothesis A proposed explanation for an observation
Matter Anything that has mass and occupies space
Observation When you use your senses to obtain information
Scientific methodology A general style of investigation with a logical, systematic approach to the solution of a scientific problem
Theory A well-tested explanation for a broad set of observations
Chemical change A change that produces matter with a different composition then the original matter
Compound A substance that contains two or more elements chemically combined in a fixed proportion
Element The simplest form of matter that has a unique set of properties
Gas A form of matter that takes both the shape and the volume of its container
Heterogeneous mixture A mixture in which the composition is not uniform throughout
Homogeneous mixture A mixture in which the composition is uniform without
Liquid A form of matter that has an indefinite shape, flows yet has a fixed volume
Mixture A physical blend of two or more components
Physical change Words such as boil, freeze, melt, condense, break, split, grind, cut and crush describe a physical change
Solid A form of matter that has a definite shape and volume
Solution Another name for homogeneous mixtures
Accuracy A measure of ho close a measurement comes to an actual or true value of whatever is measured
Density The ratio of the mass of an object to its volume
Precision A measure of how close a series of measurements are to one another, irrespective of the actual value
Accepted value The correct value for the measurement based on reliable references
Measured value The value measured in the lab
Created by: user-2056721
 

 



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