Journey to the Center

Crust, mantle, and core

Iron, magnesium, and silicon

Inner core and outer core

<p>Five</p> Signup and view all the answers

<p>Crust</p> Signup and view all the answers

<p>Mantle</p> Signup and view all the answers

<p>The two main components of the Earth's core are the solid metal inner core and the liquid metal outer core.</p> Signup and view all the answers

<p>The inner core is mostly made up of iron and nickel.</p> Signup and view all the answers

<p>The inner core is solid due to the extreme pressure it experiences, which prevents the iron from melting despite its high temperature.</p> Signup and view all the answers

<p>The outer core is composed of iron and nickel.</p> Signup and view all the answers

<p>The movement within the liquid outer core creates the Earth's magnetism effect on the crust.</p> Signup and view all the answers

<p>The mantle is the largest layer of the Earth.</p> Signup and view all the answers

<p>Gravity pulls the densest materials down toward the center of the Earth, causing the progression from the outer layers to the central layers to show increasing density of material.</p> Signup and view all the answers

<p>The lithosphere is made from the lower portion of the crust and the uppermost part of the mantle.</p> Signup and view all the answers

<p>Tectonic plates are formed from thick pieces of the lithosphere that include both oceanic and continental crust.</p> Signup and view all the answers

<p>The movement of tectonic plates is caused by the convection currents in the mantle.</p> Signup and view all the answers

<p>Earthquakes are commonly found along tectonic plate fault lines.</p> Signup and view all the answers

<p>The crust is the thinnest layer of the Earth.</p> Signup and view all the answers

<p>Subduction allows water to enter the mantle when slabs of tectonic plates are pushed into the asthenosphere and fall into the transition zone.</p> Signup and view all the answers

<p>The lower mantle is more solid than the other layers due to the increased pressure low in the mantle.</p> Signup and view all the answers