1. The 4 Spheres

2. Biosphere

3. Biosphere What is it? Where is it? A life supporting global ecosystem
Made up of all that is living on earth (plants, animals, fungi, single-cell organisms)
Where is it?
Extends over Earth’s surface and reaches into the depths of the ocean and a few kilometers into the atmosphere

4. Lithosphere

5. Lithosphere What is it? Where is it?
The solid part of the Earth that is made of tectonic plates, approximately 60 miles thick
Where is it?
On the outer layer of the Earth

6. Tectonic Plate Boundaries
Age-of-the-sage.org

7. Atmosphere

8. Atmosphere What is it? Where is it?
The blanket of gases that surrounds Earth
Made of a mixture of gases, mostly nitrogen, oxygen, argon, and carbon dioxide
Where is it?
Extends from Earth’s surface to over 500km above the surface of the planet

9. Hydrosphere

10. Hydrosphere What is it? Where is it?
The liquid water component of the Earth
Includes oceans, seas, lakes, ponds, rivers, and streams
Where is it?
On 70% of the Earth’s surface

12. How Do the 4 Spheres Interact with Each Other?
4 spheres are constantly interacting with each other
Example:
The Water Cycle

13. Chalk Talk
What are other ways the 4 spheres interact? Draw diagrams if relevant.
How does the interaction between the 4 spheres affect our daily lives?
Where do we see the interaction between the 4 spheres happening?
Why are the 4 spheres important?

14. Exit Ticket
Out of the 4 spheres, which do you think is the most important and why?