Earth's Internal Structure: Discussion
| Earth's core is composed of iron; the inner core is solid,
while the ohter core is liquid. Earth's mantle is composed of
rock (eg., basalt) and is in-between a solid and a liquid; it
flows very slowly.
Convection carries heat toward the surface in the outer core and in the mantle. The resulting motion accounts for much of the activity of our planet. |
Earth's Interior [Views of the Solar System] |
