matter - substance that takes up space, buoyancy - tendency to float on air, water or another fluid, density - amount of mass per volume, mass - quantity of matter, volume - amount of space an object occupies, volume displacement - Difference of a water level before then after an object has been submersed , calculated volume of cube -  length x width x height, physical property - characteristic that is measurable, specific gravity - known as relative density/ substance compared to water,

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