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Limestone Formation

Limestone is composed of tiny shells that fell to the ocean’s floor when sea creatures died. The pressure from other shells, the water and sand washing over them squashes the tiny shells together into ...

Let's Go Caving!

The formation of stalagmites and stalactites happens through the capillary action between porous rocks and water rich in minerals. The rocks attract the water and the moisture accumulates until gravit ...

Erosion Experiment

Huff, puff and blow as hard as you can—do you think you can blow down a sand castle with your mighty breath? Blowing air erodes—wears away—sand and dirt. In Three Little Pigs, houses of straw or twigs ...

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Gioco Aiuto
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