7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 1/18

WATER ON EARTH (I)WHERE IS WATER FOUND?

UNIT 3

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 2/18

WHERE IS

WATER FOUND?

• What is Water? (investigate)

•

The Hydrosphere• Percentages

• Fresh water and salt water 

•

The water cycle

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 3/18

WATER COVERS MORE

THAN 71% OF THE

EARTH’S SURFACE

Why do we call our planet “The

Earth”? (Investigate. Web Quest)

The hydrosphere is all thewater on the planet and it ismade of oceans and seas,rivers, lakes, groundwater,glaciers and the polar regions.

THE HYDROSPHERE“ The Blue planet” 

and there is always the same amount of water  

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 4/18

SO… 

WHO CARES

ABOUT

WATER?

Will talk about this in the last part of the unit.

But…don’t forget. Not that easy to get water .

Don’t take this for 

 granted

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 5/18

PERCENTAGES OF WATER

ON EARTH

• Water covers 71% of the Earth’s surface.

• Salt water represents more than97% of the total water on Earth.

• Fresh water (= agua dulce)

represents less than 3% of all thewater on our planet.

• Most of this “fresh water ”(77%) is ice (in glaciars and atthe polar regions.

• Groundwater represents 22%of the fresh water.

• Surface water and water vapour represents only 1%

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 6/18

SALT WATER (OCEANS ANDSEAS) REPRESENTS MORE

THAN 97% OF THE TOTAL

WATER ON EARTH. 

 A continuous body of water encircling the Earth, the world (global) ocean isdivided into a number of pr incipal ar eas. F ive oceanic divisions are usuallyrecognized: Pacific , Atlantic , Indian , Arctic , and Southern ; th

e last two listed are sometimes consolidated into the first three.http://www.oceansportal.org/topics/view/17061/  

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 7/18

FRESH WATER  REPRESENTS

LESS THAN 3% OF ALL THE

WATER ON OUR PLANET.

IT IS FOUND IN: 

• rivers

• lakes

• groundwater

• glaciars

• at the polar regions

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 8/18

rivers

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 9/18

lakes and lagoons

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 10/18

glaciers

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 11/18

groundwater

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 12/18

polar regions Inuits (reading comprehension)

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 13/18Where is my ice?

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 14/18

What has happenned? Will talk about this in the last partof the unit.

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 15/18

REMEMBER:

• Most of this “fresh water ” ( which

represents less than 3 % of the totalwater of the Earth, is ice, found in glaciars and at the polar regions:77% 

• Groundwater represents 22% of thefresh water.

• Surface water and water vapour represents only 1%

•  And… 

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 16/18

ONLY 0.014%OF THE FRESH

WATER CAN BE

USED FOR

CONSUMPTION

SO… 

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 17/18

WHO CARES

ABOUTWATER?...

EVEN IF THERE

IS ALWAYS THE

SAME AMOUNT

OF WATER…

WE ALL

SHOULD CARE

THIS IS A

SILLY

QUESTION

7/29/2019 WATER (I) Where is Water Found

http://slidepdf.com/reader/full/water-i-where-is-water-found 18/18

THE WATER CYCLEEVAPORATION, CONDENSATION, PRECIPITATION

“The water cycle” It is the continual movementof water on Earth.Hacer vocabulario

3 main Stages (=fases)1. Water from the sea

evaporates2. Water vapour rises, cools

and condenses. Cloudsform.

3. Wind moves the clouds.

4. Condensed vapour fallsas precipitation: rain,snow or hail.

5. Some water infiltratesinto the ground.

6. Goundwater goes intothe sea. And other rivers.

The Earth is the only planet where you can find water liquid, solid and vapour 

 And there is always the same amount of water