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Weyman Sect1.1vocab6

week of 9.12.11 vocab 6th grade pgs 18-27

Matter anything that has mass and occupies space.
Energy the ability to do work or cause change.
Chemistry the study of the properties of matter and how matter changes.
Substance a single kind of matter that has distinct physical and chemical properties.
Physical Property a characteristic of a substance that can be observed without changing the substance into something else.
Chemical Property a characteristic that is observed when a substance interacts with another substance.
Element a substance composed of a single kind of atom, that cannot be broken down into other substances by chemical or physical means.
Compound a substance in which two or more elements are chemically joined in a set ratio.
Mixture two or more substance that are mixed together but not chemically combined.
Physical Change a change that alters the form or appearance of a substance but does not make the material into another substance.
State the three forms in which matter exists (solid, liquid, gas).
Chemical Change a change in matter that produces new substances.
Created by: ontheweyman