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Crenulation

earth science Maturity 7-9

Rocks can change shape.

NAT F2foldsF1.jpg
NAT F2foldsF1.jpg
Deep in the Earth, rocks get squeezed. They get squeezed in two ways. This makes new lines in the rock. These lines look like tiny folds. It is like magic! Do you like looking at rocks?

41 words
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File:NAT_F2foldsF1.jpg
NAT_F2foldsF1.jpg
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📚 Content adapted from Wikipedia | Readability: FK 14.6 | Vital Level 5