1. List all of the ways that you used water yesterday
How do we get this water?
Write their answers on the board. Then ask, how do we get this water? Write those answers on the board. They should have: oceans, groundwater, lakes, ice, swamps, and rivers. Have them put these sources in order from the most water, to the least water

2. Earth’s Water Water covers ~71% of the Earth’s surface
Only substance on Earth that occurs naturally as a solid, liquid, and gas
A hydrosphere is the total amount of water on a planet.

3. In order from MOST to LEAST amount of water
Ocean
Ice
Groundwater
Lakes
Swamps
Rivers
Water vapor
Have 1 big beaker, then pour that it into several smaller beakers. Put salt in big beaker

4. 97% of Earth’s water is saltwater
3% is freshwater
77% of freshwater is frozen
Out of 23% of freshwater that isn’t frozen, only .5% is available to living organisms

5. Draw a version of this

6. Surface WATER
WATER FLOWING DOWNSLOPE ALONG Earth’s surface is called runoff
Runoff may reach a body of water, evaporate, or seep into the ground

7. Surface WATER
The pores within the ground must be large enough for water to seep through
If not, the water will collect or run downhill
If the pores already contain water the newly fallen precipitation will either remain standing on top of the ground or run downhill

8. Only a small amount of runoff becomes groundwater
When runoff seeps into the ground, it becomes groundwater. This process is called infiltration.
Only a small amount of runoff becomes groundwater

9. Groundwater
Unsaturated/Aeration Zone – rain water passes through this zone
Saturated Zone – where the water collects (water completely fills pore spaces)
These two zones meet at a boundary called the water table

10. Groundwater movement
The ability of a material to let water pass through is called permeability
Coarse grain – more space, more water
Fine grain – less space, less water (can be “impermeable)

11. Can be confined or unconfined
Groundwater movement
A rock layer that stores groundwater and allows the flow of groundwater is called an aquifer
Can be confined or unconfined

12. Groundwater moves SLOOOOOW
Have students demonstrate the speed of water flow. River = sprint Lake = walk GW = slide

13. Draw, color and label this diagram Complete the GW online simulator
Shade unsaturated zone brown and saturated zone blue. Draw a dark line at the water table
Draw, color and label this diagram
Complete the GW online simulator