Water On Earth

Oceans	9,720.0 mL
Icecaps/Glaciers	200.0mL
Groundwater	62.0mL
Great Lakes	0.18mL = 4drops
Freshwater Lakes	0.72mL = 14 drops
Inland Seas / Salt Lakes	0.8mL =16 drops
Atmosphere	0.1mL = 2 drops
All Rivers	0.01mL = dab it
Unaccounted for	16.19mL

Only 3 percent of the Earth’s water is usable for humans

Answer the following questions after the demonstration.

1. Is the distribution of water on Earth fairly even?

2. Is much of the total water on Earth available for human use?
 

3. Does it seem important for us to watch over our freshwater supply and protect it from pollution?  Why?

4.  Why is this an example of the Core Democratic Value – Common Good?

* Info from Saginaw Bay Watershed Middle School Curriculum Guide