SOLAR SYSTEM

Detailed explanation-1: -Core (Iron) The Earth’s core, its densest layer, is made up of iron-nickel alloy.

Detailed explanation-2: -The outer core is made up of slightly less dense material compared with the inner core, the lower mantle is less dense than the outer core, the upper mantle is less dense than the lower mantle, and so on with the crust being the least dense and lightest portion of our Earth.

Detailed explanation-3: -This chemical separation by partial melting and outgassing of volatiles is termed differentiation. As the interior differentiated, less-dense liquids rose from the melt toward the surface and crystallized to form crust.

Detailed explanation-4: -Lighter materials, like aluminum and silicon, stayed closer to the Earth’s surface. The process in which the chemical elements separated by density is called planetary differentiation.

Detailed explanation-5: -Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.