Grade 9 The Earth as a system in animated PowerPoint.
R15.18
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Resource Description
- There are 4 distinct spheres on Earth that make up the Earth system
- The Lithosphere – the land masses consisting of rocks & soil near the surface of the Earth
- The continental crust, oceanic crust & the uppermost mantle
- The Hydrosphere – oceans, ice glaciers & snow, underground water, lakes dams & rivers
- The atmosphere – the layer of gasses surrounding the Earth up to 350 km above the Earth
- Composition of the atmosphere
- The Biosphere – living things (biotic) & non-living things (abiotic).