1. Dirty Ice or Icy Dirt?

2. Soil Moisture Saturation UNDER-SATURATED Not enough water to fill all of the pore space of a given soil SATURATED Just the right amount of water to fill all of the pore space of a given soil OVER-SATURATED More water than can fit in the pore space of a given soil

3. Saturated?

5. What is the maximum water weight % that typical dirt on Earth can hold? Design your own experiment!

6. Water Estimates on Earth

7. Guess water weight % for each of these environments Dry Valley, Antarctica Canadian Permafrost Antarctic Glacier

8. Approximate water weight % for each of these environments Dry Valley, Antarctica Canadian Permafrost Antarctic Glacier ~100 % ~25 % ~1 %

9. Water Estimates on Mars

10. Frostfree Map of Water at Top Meter of Mars A B

11. Visible Map of Mars Surface A B