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untiled/science

vocabulary

QuestionAnswer
a change that affects the physical properties of a subtance physical change
a change that affects the chemical properties of a substance chemical change
anything that has mass and volume matter
the scientific study of the composition, structure, and properties of matter and the changes that matter undergoes chemistry
a substance with atoms that are all alike; a pure substance that cannot be broken down into a simple substance element
the smallest part of an element that still has the properties of that element atom
pure substance that are made of two or more elements that are chemically combined compound
the smallest part of a compound that still has the properties of that compound molecule
a combination of symbols and numbers to tell us the ratios in a compound chemical formula
substance that have fixed compositions and definite properties(examples: elements and compounds) pure substance
a combination of two or more substances that are not chemically combined mixture
the relationship between mass and volume of an object density
a state of matter where the particles are closely packed and barely move solid
a state of matter where the particles are close together but can slide past each other liquid
a state of matter where the particles are far apart and are in constant motion gas
a homogeneous mixture that remains constantly and uniformly mixed solution
a type of mixture in which the different components are easily distinguished heterogeneous
a type of mixture in which the components are uniformily blended so that they are indistinguishedable from each other homogeneous
Created by: btiffany on 2011-09-26



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