The Earths Layers Crust Mantle Outer Core Inner

The Earth’s Layers

Crust Mantle Outer Core Inner Core Inside Our Earth

The crust is made of soil, water and rock. The mantle is hot part melted and part solid iron and magnesium. The outer core is made of hot liquid nickel and iron. The inner core is made of solid nickel and iron. Composition of the Earth’s Layers

#2 The earth is layered with CORE metallic, inner core is solid, outer core is molten MANTLE solid but is hot enough to flow LITHOSPHERE made of crust and uppermost mantle

Crust -Continental Crust (thicker & lighter) -- Oceanic Crust (thinner & more dense)

#9 Why is there a different density between the types of crust? The oceanic crust is squeezed by the immense pressure of the oceans above and the granite is transformed into basalt.

Crust • Continental Crust is made of Granite • Oceanic Crust is made of Basalt

#3 Each layer differs in composition, density, and temperature.

Inner Core Layer: CORE – Inner Composition: Nickel and Iron (solid) Density: 12. 6 – 13. 0 g/cm 3 Temperature: 5000 degrees Celsius

Outer Core Layer: CORE – Outer Composition: Nickel and Iron (liquid) Density: 9. 9 – 12. 2 g/cm 3 Temperature: 4400 -5000 degrees Celsius

Mantle Layer: MANTLE - Asthenosphere Composition: Silicon, oxygen, iron, & Magnesium Density: 3. 3 – 5. 7 g/cm 3 Temperature: 870 - 2200 degrees Celsius

Lithosphere Layer: Lithosphere (upper Mantle and Crust) Composition Density Temperature

Crust Layer: CRUST - Continental Composition: Granite & oxygen, silicon, aluminum, calcium, iron, sodium, potassium, & magnesium Density: 2. 7 – 3. 0 g/cm 3 Temperature: 0 - 870 degrees Celsius

Crust Layer: CRUST - Oceanic Composition: Basalt & oxygen, silicon, aluminum, calcium, iron, sodium, potassium, & magnesium Density: 3. 0 – 3. 3 g/cm 3 Temperature: 0 - 870 degrees Celsius