100 Facts About the Earth

The Earth's crust varies in thickness, ranging from about 5 kilometers (3 miles) under oceans to about 70 kilometers (43 miles) under continents.

Episode Summary

The Earth's crust varies in thickness, ranging from about 5 kilometers (3 miles) under oceans to about 70 kilometers (43 miles) under continents.

Episode Notes

The Earth's crust varies in thickness, ranging from about 5 kilometers (3 miles) under oceans to about 70 kilometers (43 miles) under continents.