Provides a primary presentation of the basic rock types. Includes five each of igneous, sedimentary and metamorphic rocks, totaling 15 specimens, approximately 11⁄2" x 11⁄2". Includes key and charts.
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Heavy duty double-sided surface for fun and colorful learning on both sides. Each side has a seperate design.Use with dry era...
Cool oscillation station! Place the magnet wires on the base, move them, and watch the unique ways they oscillate as their in...