Earth Materials
Click Image for Gallery
Students determine individual
properties of each type of rock and
soil and classify their roles in the rock
cycle. The generous quantities make
the kit useful for a variety of other
exercises as well. It comes with 15
pieces each of 16 rock types. 100 cc of
crushed granite, 1 lb. each of two types
of soil, 30 pieces of halite, 1,500 mL
of limestone chips, and 30 dispensing
containers.