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SCI-7 U2

Cumulative Vocab Test Words

TermDefinition
matter Anything around us that has mass and volume.
atom The smallest amount of matter that still has all of the properties of that matter.
molecule A group of atoms that are chemically bonded together and act as a unit.
compound A substance that contains 2 or more different elements combined as a result of a chemical change.
element The simplest pure substances that are made up of only one kind of atom and have definite properties.
physical change Changes in matter that involve changes the appearance of the matter.
chemical change Changes in matter that involve changes in the atomic arrangement.
nuclear change Changes in matter that involve changes in the number of protons in the nucleus.
Reactants The substances that react together during a chemical reaction; what you have before a chemical reaction.
Products The substances that are formed during a chemical reaction; what you have after a chemical reaction.
Created by: susanmason
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