Water Underground

Water on Earth

Open Ended

What happen to water that does not flow on the surface but is found in a watershed?

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GROUNDWATER

Water Underground 

- When water seeps or infiltrates the surface of the soil it will eventually flows to the ocean or a Lake.
- Before it reaches the Ocean or Lake some is     used by   humans .

- To understand how human use the water under underground we need to understand how the structure of the Earth holds and allows water to move  

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Objectives​

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- Discuss how water moves through the ground once it returns to Earth

- Identify the different features formed as water settles and move underground​

- Explain how humans ​make use of the fresh water that is found underground

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Water Underground

• When water soaks down into the ground by gravity it passes through the PERMEABLE  LAYER it eventually reaches the IMPERMEABLE LAYER

• Permeable Layer : This is the area of the Earth where water is allowed to pass through . Soil is loose or porous

• The impermeable layer is made up of solid rock . Water will not pass through but settles

Multiple Choice

Area of soil through which water moves through freely

• Permeable layer

• Impermeable Layer

Multiple Choice

Area of soil through which water cannot pass

• Permeable

• Impermeable

Water Underground

• The SATURATED ZONE is that area underground which holds water 

• The WATER TABLE is the highest level at which water is found underground.It is the top of the saturated zone

• The UNSATURATED ZONE is that area above the water table through which water passes through.

Match

Match the following definition with correct term

• Allows water to pass through

• Do not allow water to pass through

• Area where water is not found

• Area where water is found

• Higehest level of water underground

Permeable

Impermeable

Unsaturated

Saturated Zone

Water Table

• Permeable

• Impermeable

• Unsaturated

• Saturated Zone

• Water Table

Multiple Choice

The zone where water is found underground

• Saturated

• Unsaturated

Multiple Choice

The zone underground where there is little or no water

• Saturated

• Unsaturated

Multiple Choice

The top of the saturated zone

• saturated

• unsaturated

• water table

• permeable

Water underground 

• The water collected in the spaces underground is called an AQUIFER

• A WELL is formed when a channel is dug into the aquifer

• Sometimes an aquifer is very close to the surface of the Earth and will flow out . This is called a SPRING

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Open Ended

Where below the Earth surface must one dig in order to make a well?

Open Ended

What are some things that would make a well run dry ?

• When a well runs dry it can be RECHARGED when it rains . This will cause the water Table to rise

Open Ended

What do you believe will happen if the water table rises too high ?

Poll

The area underground where water is collected

• Artesian Well

• Aquifer

• Spring

• Geyser

Multiple Choice

Groundwater that flows to the surface

• Spring

• Artesian Well

• Well

• Aquifer

Multiple Choice

Trapped water that is forcefully released from underground

• Well

• Artesian Well

• Spring

• Aquifer

Multiple Choice

Where would a well be located in the diagram?

• A

• B

• C

• D

Multiple Choice

What location a spring?

• A

• B

• C

• D

Hotspot

Circle the dry well

Hotspot

Circle the Spring

• When water is trapped between two impermeable layer pressure may build up . 

• If the pressure gets too high it will puncture  the rock forcefully releasing the water . This is called an ARTESIAN WELL

Multiple Choice

What location is an Artesian well?

• A

• B

• C

• D

Open Ended

What is a Geyser ?

Labelling

Label the following parts of the features formed underground as water infiltrates the soil . Place label on letter

Drag labels to their correct position on the image

Aquifer

Well

Impermeable Layer

Artesian Well

Permeable layer

Water Table

Dry Well

impermeable layer

Geyser 

• Groundwater seeps underground is trapped in chambers and also moved in channels deep down

• Heat from magma heats the water 

  Pressure builds up and the water is forcefully released   

• This water is very hot 

  How do you believe a hot spring is formed ?

OLD FAITHFUL GEYSER

Open Ended

What are the differences between a Geyser and an Artesian Well?