domingo, 22 de agosto de 2010

Vocabulary #3

mass: the amount of matter in an object 
volume: the amount of space an objects takes up


weight: (on Earth) a measure of how tightly packed matter is; the amount of mass contained in a given volume
density: a measure of how tightly packed matter is ; the amount of mass contained in a given volume
buoyancy: the upward push on an object by the liquid (or gas) the object is placed in
conduct: allow heat or electricity to flow through readily
insulate: not allow heat or electricity to flow through radily

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