Cave Formations

Caves are underground landscapes formed by the forces of erosion. Carbonic acid in water dissolves rock and forms passages and mineral formations. Caves cover 10% of the earth and occur in temperate, tropical, alpine and polar biomes. They are called Karst landscapes. About 1/4th of the world's people depend on water supplied by karst areas.

Primary/Early Childhood Cave Formations - Plastic Cards
Discover the wonder of karst regions. Subjects include caves, cave pearls, columns, dripstone, flowstone, soda straws, stalactites and stalagmites. The Early Childhood version has 8 subjects and 32 cards.
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