1. Introducing the Geochemical Cycles (it is necessary to understand & use these if you want to design a Mars Colony or any ecosystem on Earth…) Water cycle Carbon cycle Energy NON-cycle

2. Water Cycle…97% ocean

3. 3% ice

4. Most of the rest is groundwater…

5. Rivers & lakes

6. Clouds, rain, snow…

8. Plant tissue

9. H2O Cycle getting started…
EVAPORATION
Ice
Ground
water
Ocean

10. The main thing is to present it as a CYCLE
That means every place with water has at least one arrow coming in and one arrow going out!
ICE

11. "All the rivers run into the sea; yet the sea is not full: unto the place from whence the rivers come, thither they return again. (Ecclesiastes 1:7).
(This is supposed to have been written by King Solomon, who was considered very wise.)