Why is the core of the earth molten?

a. the density of iron b. the electrical conductivity of iron c. the relative abundance of iron in the universe d. the earthquake S waves do not pass through the core

a) the pressure is greater in the outer core than in the inner core. b) the melting point of the iron-­‐nickel mixture is higher in the inner core than in the outer core because the pressure is higher in the inner core. c) the material out...

Why is Earth's outer core liquid while its inner core is solid? explain

Our planet has a very hot core of molten stuff. How long would it stay hot if the Sun were to go out?

is the rotation caused by a molten core, or vice versa?

We know solid is denser than liquid, and that the denser materials settle at the bottom, why then does the crust not settle into the interior of the earth and the liquid core come and float on top?

I realize that the molten core of the earth is deep. By now we must certainly have the ability to reach it on a global scale. Why, then, aren't we and other countries tapping ...show more

The earth's core and under the solid outer skin, the crust, hot liquid magma is there which some times get out through active volcanoes and the red hot flowing liquid called lava. What would happen if hot magma transformed into solid rocks?