Density is defined as mass per unit volume.The symbol most often used for density is ρ (the lower case Greek letter rho.The box that has more balls has more mass per unit of volume. This property of matter is called density. The density of a material helps to distinguish it from other materials. Since mass is usually expressed in grams and volume in cubic centimeters, density is expressed in grams/cubic centimeter.Block I

Mass = 79.4 grams

Volume=29.8 cubic cm.

Block II:

Mass= 25.4 grams

Volume=29.8 cubic cm.

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