mass - the measure of the amount of matter in an object, displacement - method used to measure the volume of a solid by placing it in a known amount of liquid, volume - the amount of space an object takes up, density - a physical property of matter relating the mass of an object to the volume, relative density - the comparison of the density of one material as it relates to another material; usually water, density formula - density = mass/volume, triple beam balance - tool used to measure mass, graduated cylinder - instrument used to measure volume of a liquid,

Density

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