1. Hydrology is the study of water. What can you infer that hydro- means, what does -ology mean? Why is such a big deal made about humans needing water when it covers 71% of the Earth? (20 words min)

5. WATER!

6. 2. What’s the molecular formula for water?

7. Remember how we said these roving robots will land on Mars? This is how the first couple of rovers landed on the red rocky planet: http://www.youtube.com/watch?v=Kyktv C7w7Js http://www.youtube.com/watch?v=Kyktv C7w7Js

8. Remember how we said these roving robots will land on Mars? This is how the newest rover “Curiosity” was supposed to land on Mars: http://www.youtube.com/watch?v=gwinFP 8_qIM&feature=related

9.  Here’s a recent shot taken by a satellite orbiting Mars.

10.  You can see the Curiosity rover landing on the planet!

11. http://www.wired.com/wiredscience/2012 /08/hd-curiosity-landing/

15. We thought we saw water on Mars here, but these are just some bluish rocks.

16. EARTH: “CLOSED” SYSTEMMARS: “OPEN” SYSTEM

17. EARTH: “CLOSED” SYSTEMMARS: “OPEN” SYSTEM  Earth’s thin, layered atmosphere traps most matter here...including H 2 O.

18. EARTH: “CLOSED” SYSTEMMARS: “OPEN” SYSTEM  Earth’s thin, layered atmosphere traps most matter here...including H 2 O.  Mars’ atmosphere is skimpy and can’t hold water there.

19. http://news.discovery.com/space/this-moon-was-made-for- mining-helium-3.html

20.  Video notes