earth’s interior sci
Post on 08-Aug-2015
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Earth’s spheres
• There are four kinds of spheres on the Earth.• These four substances are: Land, water, living
things, air; but in scientific language, we call them differently.
Lithosphere
• Lithosphere-Land, earth that we are living on; also we can call undergrounds as a lithosphere.
Hydrosphere
• Hydrosphere-water that we all need, and cannot survive without it. Ex: Oceans, lakes, rivers, etc.
Biosphere
• Biosphere-Living things, as we know that word bio-life, it’s easy to define this word.
• For example: Plants, trees, animals, humans, etc; everything that absorbs oxygen.
Layers of Earth
• Earth is made up of bunch of different layers; but there’s four most significant layers, they are: Oceanic Crust, Continental Crust, Asthenosphere, Mantle, Outer & Inner Core. Each layer of earth has it’s specific job, and characteristics.
Oceanic Crust
• Oceanic Crust-is much thinner than Continental; under the sea, like islands, lands under the sea.
Outer Core
• Outer Core-is a liquid. The outer core is 2300 km thick. Outer Core composed of nickels and irony.
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