The Earth's core is thought to be predominantly iron (85 %) with some (4-5%) nickel and the remainder oxygen, silicon, hydrogen and carbon and a number of siderophile (iron liking) elements that descended to the core with iron during planetary differentiation.
The outer cores is made up of mostly iron and nickel in a liquid state.
Changes in climate
The three parts that make up the Earths mantle are the crust, core, and mantle.
763.59 Earths can be contained in Saturn (by volume)
The earths outer core's most abundant elemant is silicon. :)
The atmosphere.
the crust and the core
Nitrogen, Oxygen and Argon make up 99% of the atmosphere
The three parts that make up the Earths mantle are the crust, core, and mantle.
because the heavier elements are pulled toward center of the earth by gravity
Soild
crust and upper mantle