1. The Earth System
Mod.D U.1 L.1

2. EARTH’S SPHERES They all interact with each other Geosphere
What are they?
Earth’s System is made up of 5 spheres:
Geosphere
Hydrosphere
Cryosphere
Atmosphere
Biosphere
They all interact with
each other

3. 1. Geosphere
Earth’s interior, landforms, minerals etc, and all processes
that shape earth
Made up of Inner
core, middle mantle,
and outer crust

4. 2. Hydrosphere All liquid water Is constantly moving
Ocean currents, wind/clouds, evaporation, rain/precipitation, rivers, underground water, in living things

6. 3. Cryosphere Frozen water Mostly at the polar ice caps
Ice, sea ice, glaciers, icebergs, snow
Melts and solidifies seasonally

8. 4. Atmosphere Invisible gases surrounding the Earth Made up of:
78% Nitrogen
21% Oxygen
1% Carbon dioxide and other gases

9. Layers of the atmosphere

10. 5. Biosphere Made up of: All living things and their environment
All organisms need air/oxygen, water, source of energy/food, shelter

11. Earth’s spheres interact

12. Life is made possible on Earth
When energy and matter cycles between the 5 spheres
Energy – chemical – food
Thermal – heat up spheres
Physical – cause winds and currents
Solar –
THE SUN IS THE SOURCE OF ALL ENERGY ON EARTH

13. Is a way to keep track of energy transfers in and out of Earth systems
Earth’s Energy Budget
Is a way to keep track of energy transfers in and out of Earth systems

15. Factors that affect Earth’s energy budget
Amount of greenhouse gases – H2O, CO2, methane, ozone,
Amount of polar ice

16. Questions!
Is one of Earth’s sphere more important for life than the other?
Could life exist without one sphere?
Or Is it essential that all spheres work together?
Write your answers on this sheet.