Seafloor Spreading
8:50
Introduction to Volcanoes
12:44
Understanding Plate Tectonics
11:57
The Theory of Continental Drift
14:02
How the tides REALLY work
7:47
Seafloor Spreading - Earth Science for Kids!
15:28
The Geography of the Ice Age
1:07:23
Exploring The Underwater World | 4K UHD | Blue Planet II | BBC Earth
3:47:14