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density definition
how tightly packed atoms are in an object
low density
not many atoms
high density
tightly packed atoms
to find out mass
density times volume
to find out density
mass divide volume
to find out volume
mass divide density
mass
g or kg
volume
cm3 or m3
density
g/cm3 or kg/m3
floatation
describes how well an object or substance floats
has lower density
float
has greater density
sink