The student will demonstrate an understanding of Earth systems, in relationship to the water cycle

Objective

water carbon nitrogen

Predict the results of modifying the Earth’s nitrogen, water and

carbon cycles

Water Cycle Raphttp://www.youtube.com/watch?

v=F9Yi4dAzHsc&safety_mode=true&persist_safety_mode=1&safe=active

water carbon nitrogen

YouTube - Bill Nye the Science Guy - Water Cycle Jump.URL

1. The student will summarize the effects of human activity on the

water cycle: global climate change, water quality and water

quantity

Lesson Objective

water carbon nitrogen

H y d r o l o g y

• is the study of the movement, distribution, and quality of water throughout the Earth, including the hydrologic cycle and water resources. A practitioner of hydrology is a hydrologist, working within the fields of either earth or environmental science, physical geography, geology or civil and environmental engineering.

Etomology

• The term hydrology is from Greek: ὕδωρ, hydōr, "water"; and λόγος, logos, "study"

• The vast bulk of the water on Earth is regarded as saline or salt water, with an average salinity of 3.5‰, though this varies slightly according to the amount of runoff received from surrounding land. In all, oceanic water, saline water from marginal seas, and water from saline closed lakes amounts to over 98% of the water on Earth is salt water.

Fresh Water

• 2% of the Earths Remaining water is fresh water. Of that 2% tied up in Glaciers, which account for about 75% of the world's fresh water, and of this the Antarctic ice sheet accounts for about 85%. Therefore if you do the math… only about 0.5% of the Earth’s water is available for consumption… and, when you think how much we abuse and pollute our water…

True of False: There is plenty of water for human consumption (potable water).

Question

water carbon nitrogen

Lions Share??? To Us???

• Therefore if you do the math… only about 0.5% of the Earth’s water is available for consumption… and, when you think how much we abuse and pollute our water…

There is a limited supply of potable water on earth.

There is a limited supply of potable water on earth.

Earth's Water Supply

• The Great Lakes hold 21 percent of the world's surface fresh water.

• The Ogallala Aquifer, also known as the High Plains Aquifer, and the World’s largest fresh water lake is a vast yet shallow underground water table aquifer located beneath the Great Plains in the United States. One of the world's largest aquifers, it covers an area of approximately 174,000 mi² (450,000 km²) in portions of the eight states of South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas.

Salt Water Intrusion

1. What is considered to be the Zone of Depression at the bottom of the pipe of a well system? And, give an example

2. Why is the salt water under the fresh water?

3. What is the term used when fresh water and salt water mix?

1. The cone shape, void of water, at the bottom of the pipe, caused by the change in pressure. Using a straw on a milkshake. Cyclones. Hurricanes. Tornadoes.

2. Salt water is more dense than fresh water.

3. Brackish water.

The

Water Cycle

The

Water Cycle

How does water move from one place to another?

Evaporation, transpiration, condensation, precipitation.

Engage

• Time to Draw

• My version of the Water Cycle

Extreme Water

water carbon nitrogen

Diminished Water SupplyDiminished Water Supply

Diminished Water Quality

ExploreThe Environmental Protection Agency

• Answer the following questions1. Where is water stored?

2. How does water move from one place to another?

3. What is infiltration?

4. What is runoff?

5. How does global warming affect the water cycle? Use information about the effect of (a) the wet cycle and (b) the dry cycle.

Explain

• Debrief

• Review questions related to the EPA water cycle animated video clip

Where is water stored?

Water is stored in oceans, lakes, rivers, and groundwater.

Water Cycle Multi Media

• Digital Video

• Pod Cast

YouTube - The Water Cycle Digital Story MD400.URL

YouTube - The Water Cycle1.m4a.URL

What is infiltration?

Infiltration is water movement between the spaces in the soil.

What is runoff?• Runoff occurs

when water flows over the ground instead of sinking into the ground.

How does global

warming affect the water cycle?

Include information about the effect of:

a) The wet cycle

b) The dry cycle

Global warming intensifies the water cycle because the earth’s surface is a little warmer and this increases evaporation.

a). Where there is too much water, there is more water infiltrating and more runoff. This could cause flooding and negative effects on plants and animals living in the area.

b). In areas away from a water source more evaporation and transpiration could dry out the soil. This could lead to lowered ground water supply, and have negative effects on the plants and animals living in the area.

Elaborate

Another Rap

YouTube - The Water Cycle Rap.URL

• A running toilet can waste up to 200 gallons of water per day.

Evaluate/Turn It InDiscussion #5

• Summarize the effects of human activity on the water cycle:

global warming,

water quality,

and quantity.

Acrostic water cycle poem

•Wondering about what a water cycle is?

•Alright, I’ll tell you. It’s a never-ending natural sequence.

•The water cycle has several steps in it.

•Evaporation, which is when the heat of the sun causes the water to evaporate.

•Right, let’s go to the next step.

• Condensation, the next step, is when the water forms into a cloud.

• Yep, now to the third step which is precipitation, is when it rains from the cloud.

• Cool, now it’s raining, the droplets fall on top of a hill, and goes into the river. This is surface runoff.

• Let’s see, now the water soaks into the ground. This is called infiltration

• Entering the ground, the water flow back into the ocean, this is called discharge. After that, starts over.

Water Cycle / Hydrological Cycle Graffiti

• See Word Doc.

Creative Form• Create : 2 – 4 minutes long. Pairs must have

the 3-C’s– Rap– Song– Story… Adventure, action, vacation, spy…– Poster…– Poem– Analogy writing– Demonstration– Shadow Box– Other … approved by teacher– Glogster