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Chpter 3

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 that takes up space.  
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Elements   All the other substances, can't be broken down  
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metals   good conductors of heat, can bend without breaking, most have a gray color.  
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nonmetals   don't conduct heat or electricity.  
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semimetals   are both metal and nonmetals.  
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compound   is a type of matter made of two or more elements  
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molecule   smallest partial of a compound that still acts like that compound  
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atoms   smallest part of an element that still acts like that element  
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Atomic theory   states that everything is made of atoms  
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protons   positive charge. found in the nucleus  
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neutrons   no charge. found in the nucleus  
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electrons   negative charge. orbits the nuceus  
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solid   has a definite shape and volume  
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liquid   definite volume no definite shape  
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gas   has no defiant shape or volume  
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plasma   like a gas, but conducts heat and electricity, occurs at high temps.  
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melting point   when a solid turns in to a liquid or liquid to solid. freezing point is the same as the melting point  
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evaporation   when liquid becomes a gas  
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condensation   when a gas becomes a liquid. gas partials touch a cold surface and the temp. drops.  
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Created by: sarah-beck
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