Understanding the Four Spheres of the Earth: Atmosphere, Geosphere, Hydrosphere, Biosphere
Explore the Earth's Atmosphere, Geosphere, Hydrosphere, and Biosphere in detail, learning about their composition, significance, and interactions. Discover how these spheres are interconnected and function as systems within the planet, supporting life and natural processes.
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Presentation Transcript
Four Spheres of the Earth Atmosphere Geosphere Hydrosphere Biosphere MAR A SANZ
A sphere is like a ball. or a series of three dimensional circles
Geo means Rock The meaning of the prefixes Hydro means Water Atmo means Air Bio means Life
The atmosphere is the sphere of air that surrounds the earth.
Layers of the atmosphere
The Hydrosphere is the sphere of water that covers 70% of the Earth.
The hydrosphere is made up of all the salt water and fresh water on Earth. Salt water in the oceans and seas. Fresh water in the lakes, rivers and streams and the frozen water on Earth.
All runs down hill. liquid water Hydrosphere continued It starts as fresh water in the high areas and down hill until it reaches the ocean. runs
The Geosphere is the sphere of rock that is the Earth.
This includes the rock on the surface and the interior.
The Biosphere is the sphere of living things on Earth.
Biosphere continued This includes all the plants, animals, fungus, protists and bacteria on Earth.
Each of these spheres is also considered a system because they are always moving and being recycled. In the biosphere the life forms have a lifespan and when they die they provide nourishment for other organisms. In the geosphere, the rocks are endlessly being broken down, then recycled into new rocks.
In the hydrosphere, the water is endlessly moving, changing states and becoming refreshed. In the atmosphere, the air is continually rising, falling and mixing.
The spheres / systems are endlessly interacting. Can you think of ways that they interact?
How about the biosphere and the hydrosphere? All living things require water to live. Many animals live in the water. Animals like beavers can alter the path of the water.
Describe the spheres / systems that are interacting.
Describe the spheres / systems that are interacting.
Describe the spheres / systems that are interacting.
