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science flash cards

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 has mass and takes up space  
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chemistry   the study of properties of matter and how it changes  
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physical properties   color texture length etc  
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chemical properties   flammable rot rust reacts  
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element   a substance made of only one type of atom  
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atom   all matter is made of  
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compound   2 or more elements chemically combined  
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molecule   a neutral group of two or more atoms  
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chemical formula   symbols used to show elements  
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weight   the amount of gravity acting on an object  
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mass   how much matter in an object  
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volume   how much space an object takes up  
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density   how much is packed in an object. mass divided by volume  
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physical change   changes form of appearance  
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chemical change   changes into a different substance  
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law of conservation of mass   states that matter is not created or destroyed during a physical or chemical change  
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thermal energy   total of kinetic and potential energy of all the particles in an object  
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exothermal change   change in which energy is realized  
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endothermic change   a change in which energy is absorbed  
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heterogenous mixture   mixture where you can see all the different parts  
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homogenous mixture   mixture where you can't see all the different parts  
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what is the difference between mass and weight   mass=stuff inside an object weight=the amount of gravitational force acting on an object  
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what is matter made of   atoms  
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how can you find density   mass/volume  
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what are the two types of mixtures   heterogenous and homogeneous  
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how can we describe matter   using physical properties and chemical properties  
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what happens to a substance in a physical and chemical change   physical- changes form chemical- changes substance  
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Created by: ChinTif
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