Key Words mass volume density grams cubic centimeters Materials balance metric ruler rock cubes ice cubes steel ball bearings or rods graduated cylinder beaker or cup water calculator "Density Data Chart" Background Density is defined as the average mass per unit volume;
(metric ruler; cubes; steel ball bearings or rods) Context(metric ruler cubes,List([72, 105))):(Key Words; mass; ) Context(Key Words mass metric ruler cubes,List([0, 105))):(cubic centimeters Materials; balance; ) Context(metric ruler cubes,List([72, 105))):(Background Density; is defined; as the average mass per unit volume)
metric ruler cubes,List([72, 105)) Key Words mass metric ruler cubes,List([0, 105)) metric ruler cubes,List([72, 105))
metric ruler Key Words cubic centimeters Materials Background Density
cubes mass balance is defined
steel ball bearings or rods
as the average mass per unit volume