Relate to students that the mass and volume may vary a lot for each group, but the density for the wood and granite is almost the same. Hopefully students will realize there is a direct relationship to the mass and volume of each substance. A good activity is to have students determine the average mass, volume and density of their class for both objects. Each lab group is a different trial. Today you will do a lab activity on determining the density of a regular shaped and an irregular shaped object.
Density is determined by deviding the mass by the volume.
At your lab area you will find a block of wood and a piece of granite rock. Your objective for today is to find the volume, mass and density of both objects. Take the block of wood and determine the mass and volume by using the appropriate pieces of lab equipment. Mass is determined by measuring on a triple beam balance. Determine the density of the wood and fill-in the blanks below.