1. Movement and Storage of Groundwater SWBAT describe how ground water is stored and moves underground; explain what an aquifer is.

2. Get your Lab Notebook 1. Record the volume of sand: ___________ 1. Record the volume of sand: ___________ 2. Record the volume of the water: ___________ 2. Record the volume of the water: ___________ 3. Pour the water into the sand cylinder until the water is flush with the sand. 3. Pour the water into the sand cylinder until the water is flush with the sand. 4. Record the volume of what’s left in the water cylinder: __________ 4. Record the volume of what’s left in the water cylinder: __________ 5. Determine the ratio of the volume of water to the volume of sand. 5. Determine the ratio of the volume of water to the volume of sand. 6. Determine how many liters of water could be stored in a cubic meter of sand. 6. Determine how many liters of water could be stored in a cubic meter of sand.

3. The Hydrosphere What is the hydrosphere? What is the hydrosphere? All of the water on Earth’s crust. All of the water on Earth’s crust. Glaciers and Ice caps 90% Saltwater 97%

4. Precipitation and Groundwater Infiltration Infiltration Precipitation that falls on land and enters the ground Precipitation that falls on land and enters the ground Porosity Porosity Percentage of pore space in a material Percentage of pore space in a material

5. Get your lab notebook Title: Measuring Pore Space Title: Measuring Pore Space Sent one person to collect your materials Sent one person to collect your materials Slowly pour water into the containers and stop when the water just covers the top of the sediment Slowly pour water into the containers and stop when the water just covers the top of the sediment Record the volume of water used in each Record the volume of water used in each Which substance has more pore space? How can you tell? Which substance has more pore space? How can you tell?

6. The Zone of Saturation Zone of saturation Zone of saturation Depth below Earth’s surface at which groundwater fills all pores completely Depth below Earth’s surface at which groundwater fills all pores completely Water table Water table Upper boundary of the zone of saturation Upper boundary of the zone of saturation

7. The Water Table How are gravitational water and capillary water different? How are gravitational water and capillary water different? Gravitational water is pulled down, due to gravity and capillary water actually flow up due to the small pore spaces in rocks Gravitational water is pulled down, due to gravity and capillary water actually flow up due to the small pore spaces in rocks What are some things that affect the water table? What are some things that affect the water table? Precipitation Precipitation Season Season Weather conditions Weather conditions

8. Groundwater Movement How does groundwater move? How does groundwater move? Groundwater moves in the direction of the slope of the water table. It moves slowly through the pores. Groundwater moves in the direction of the slope of the water table. It moves slowly through the pores. Permeability Permeability The ability of a material to let water pass through it The ability of a material to let water pass through it What is an aquifer? What is an aquifer? A permeable layer through which groundwater flows A permeable layer through which groundwater flows

9. With a partner Answer questions 1-5 on page 243. Answer questions 1-5 on page 243. Be sure to answer in complete sentences. Be sure to answer in complete sentences. Finish for homework. Finish for homework.