“Water, water everywhere

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Presentation transcript:

“Water, water everywhere H2O = Life H2O = Life Chapter 15 “Water, water everywhere nor any drop to drink…” ~ Samuel Taylor Coleridge 1798 Mr. Sierra's Earth Science

Earth – the “Blue Planet” If 70% of our planet is covered with water, why should we be concerned about “saving” any?

Earth – the “Blue Planet” It’s mostly SALT water - only about 1-3 % is actually fresh, drinkable and “accessible”.

Vocabulary Desalination - the process of removing salt from ocean water http://maps.grida.no/library/files/water-desalination_002.jpg

http://www.good.is/post/transparency-drinking-water/

March 22 Every Year!

same glass as half-full. But a giving person and starts looking for "A pessimist, they say, sees a glass of water as being half-empty; an optimist sees the same glass as half-full. But a giving person and starts looking for someone who might be thirsty." Communications Consultant, G. Donald Gale

In America… What do we use water for? What uses the most water? On average, each person in the United States uses about 20,000 gallons of water each year. What do we use water for? Water is used for bathing, washing clothes and dishes, watering lawns, carrying away wastes, and drinking. What uses the most water? Farming & Agriculture

What is the driving force Hint… What is the driving force (source of energy) for the water cycle?

Vocabulary Watershed - the area of land that is drained by a river system

http://www.raritanbasin.org/Pictures/watershed.jpg

United States Watershed http://www.nps.gov/miss/photosmultimedia/upload/watershedBG.jpg

http://chanceofrain.com/wp-content/uploads/2009/09/Bay_Delta_Map4.gif

VOCABULARY Aqueduct: a man-made river, canal or pipeline for transporting water The Pont du Gard aqueduct was constructed by the Romans in the 1st century AD

VOCABULARY Levee: Raised earth (like a dam) that runs parallel to a river – used to control rivers and prevent flooding.

VOCABULARY Reservoir: An artificial (man-made) lake, made by a dam, used to store water.

California Waterways Activity: Follow instructions on worksheet to identify key rivers, aqueducts and reservoirs in our state. Be sure to use your KEY to identify colors.

Additional Vocabulary Gradient Velocity Tributary Capacity