Movement and Movement and Storage of Storage of

GroundwaterGroundwaterSWBAT describe how ground SWBAT describe how ground

water is stored and moves water is stored and moves underground; explain what underground; explain what

an aquifer is.an aquifer is.

Get your Lab NotebookGet 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 3. Pour the water into the sand cylinder

until the water is flush with the sand.until the water is flush with the sand. 4. Record the volume of what’s left in the 4. Record the volume of what’s left in the

water cylinder: __________water cylinder: __________ 5. Determine the ratio of the volume of 5. Determine the ratio of the volume of

water to the volume of sand.water to the volume of sand. 6. Determine how many liters of water 6. Determine how many liters of water

could be stored in a cubic meter of sand.could be stored in a cubic meter of sand.

The HydrosphereThe 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%

Precipitation and Precipitation and GroundwaterGroundwater

Infiltration Infiltration Precipitation that falls on land and Precipitation that falls on land and

enters the groundenters the ground Porosity Porosity

Percentage of pore space in a materialPercentage of pore space in a material

Get your lab notebookGet your lab notebook

Title: Measuring Pore SpaceTitle: Measuring Pore Space Sent one person to collect your materialsSent one person to collect your materials Slowly pour water into the containers Slowly pour water into the containers

and stop when the water just covers the and stop when the water just covers the top of the sedimenttop of the sediment

Record the volume of water used in eachRecord the volume of water used in each

Which substance has more pore space? Which substance has more pore space? How can you tell?How can you tell?

The Zone of SaturationThe Zone of Saturation

Zone of saturation Zone of saturation Depth below Earth’s surface at which Depth below Earth’s surface at which

groundwater fills all pores completelygroundwater fills all pores completely Water table Water table

Upper boundary of the zone of Upper boundary of the zone of saturation saturation

The Water TableThe Water Table

How are gravitational water and How are gravitational water and capillary water different?capillary water different? Gravitational water is pulled down, due to Gravitational water is pulled down, due to

gravity and capillary water actually flow gravity and capillary water actually flow up due to the small pore spaces in rocksup due to the small pore spaces in rocks

What are some things that affect the What are some things that affect the water table?water table? Precipitation Precipitation SeasonSeason Weather conditionsWeather conditions

Groundwater MovementGroundwater Movement

How does groundwater move?How does groundwater move? Groundwater moves in the direction of the Groundwater moves in the direction of the

slope of the water table. It moves slowly slope of the water table. It moves slowly through the pores.through the pores.

Permeability Permeability The ability of a material to let water pass The ability of a material to let water pass

through itthrough it What is an aquifer?What is an aquifer?

A permeable layer through which A permeable layer through which groundwater flowsgroundwater flows

With a partnerWith a partner

Answer questions 1-5 on page 243.Answer questions 1-5 on page 243. Be sure to answer in complete Be sure to answer in complete

sentences.sentences. Finish for homework.Finish for homework.