Sketch two diagrams of earth's internal structures based on chemical composition and mechanical (physical) properties
Diagram 1: Earth's internal structure based on chemical composition
- Crust: Composed of rocks rich in silicon and oxygen, such as granite and basalt
- Mantle: Composed of magnesium and iron-rich minerals, such as olivine and pyroxene
- Outer core: Composed of molten iron and nickel
- Inner core: Composed of solid iron and nickel
Diagram 2: Earth's internal structure based on mechanical properties
- Lithosphere: The rigid outer shell of the Earth, including the crust and upper part of the mantle
- Asthenosphere: The partially molten layer beneath the lithosphere, where convection currents occur
- Mesosphere: The strong lower part of the mantle that extends to the outer core
- Outer core: The liquid layer composed of molten iron and nickel
- Inner core: The solid layer composed of iron and nickel.