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Cumulative Vocab Test Words

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
matter   Anything around us that has mass and volume.  
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atom   The smallest amount of matter that still has all of the properties of that matter.  
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molecule   A group of atoms that are chemically bonded together and act as a unit.  
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compound   A substance that contains 2 or more different elements combined as a result of a chemical change.  
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element   The simplest pure substances that are made up of only one kind of atom and have definite properties.  
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physical change   Changes in matter that involve changes the appearance of the matter.  
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chemical change   Changes in matter that involve changes in the atomic arrangement.  
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nuclear change   Changes in matter that involve changes in the number of protons in the nucleus.  
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Reactants   The substances that react together during a chemical reaction; what you have before a chemical reaction.  
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Products   The substances that are formed during a chemical reaction; what you have after a chemical reaction.  
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