Film info
Film summary
A look at caves of all shapes and sizes: how do they form? And what creates the strange stalactite and stalagmite structures that can be found inside?Key facts
- Caves are natural underground holes carved by water.
- Sea caves are formed by the power of the ocean.
- Acidic rainwater dissolves limestone to form caverns.
- Stalactites are formed as chemical-rich water deposits calcium carbonate that runs through the rock and from the roof.
- Stalagmites are formed as calcium carbonate collects on the ground.
Transcript
Caves are natural underground holes large enough... for humans to enter
The scale of some can be breathtaking!
Most are carved by water.
Sea caves are formed by the power of the ocean but rain water forms most caves.
Rain water is often slightly acidic, dissolving limestone to form ...
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