| Title | Comment | Keywords |
|---|---|---|
| Heat Within the Earth | 14:50 - 15:32 (00:42) / 0.4 MB | "Jason Saleeby", rock, flow, convection, mantle, heat, "radioactive decay", "plate tectonics", element, uranium, thorium, potassium |
| Heating Magma | 03:09 - 03:59 (00:50) / 0.8 MB | volcano, "David Sigurdson", heat, radioactivity, isotope, potassium, thorium, uranium, decay, magma |