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unit 1 - 6

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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mass   describes the amount of matter in an object  
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wieght   a measure of the gravitational force on an object  
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volume   the amount of space that an object takes up  
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density   a measure of the amount of mass in a given volume  
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physical property   a characteristic of a substance that can be measured without changing the identity of the substance  
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chemical property   describes a substances ability to change into a new substance with different properties  
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physical change   a change that affects one or more physical properties of a substance  
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chemical change   occurs when one or more substances change into an entirely new substance with different properties  
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the law of conservation of mass   states that in ordinary chemical and physical change mass is not created or destroyed but is only transferred into different subtaces  
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atom   the smallest unit of an element that maintanes the properties of the element  
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element   made up of one or more of the same kind of atom chemically combinded  
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compound   made up of different kinds of atoms of atoms of atoms chemically combinded  
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mixture   contains a variety of elements and compounds that are not chemically combined with eacother  
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pure substance   a substance that has definite physical and chemical properties  
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heterogeneous   mixture is one that does not have a uniform composition  
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homogeneous   substances that are evenly spread throughout  
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solid   has definite volume and shape  
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liquid   has definte volume but not a definite shape  
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gas   has nor definite volume nor shape  
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freezing   the change in state in which a liquid becomes a solid  
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melting   change from solid to liquid  
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evaporation   liquid to gas  
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boiling   rapid change from liquid to gas or vapor  
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condensation   gas to liquid  
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sublimation   the change from a solid state directly into a gas  
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deposition   gas directly to a solid  
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Created by: 18khenry0114
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