Water On EarthLearning Targets:

•Know the process involved in earth’s water cycle•Know the various water reservoirs and % of the water in each

See-Think-Wonder

The Water CycleWater Enters the atmosphere as water vapor

through – Transpiration-leaves plants through their leaves– Evaporation-from lakes, rivers, oceans.

Water vapor becomes water when– Condenses in the air and forms clouds

Water returns to earth– Through precipitation

Absorbed by Earth– Infiltration (Percolation) to form groundwater– Runoff into lakes and streams

Activity

Roll Your Way through the Water Cycle– Complete all the boxes for the travels.• You may only stay at a station two times in a row.• After two rolls at a station you must continue rolling till

you move• You can return to any station once you have left it

– Use your journey to create a cartoon for Wally Water-droplet.• Each box represents a roll at a station• Use captions to explain what is going on in the story.

– Cartoon is due tomorrow.

http://chogger.com/comics/EgYHk/the-water-droplets-life

Where is all our water???

• On the box containing a single water droplet. Please divide the water droplet and color the portion of the water on earth that is fresh blue and the portion of the water on earth that is salt water yellow.

97 %Of Earth’s Water Is

Saltwater (Ocean water)

Only 3 % of the water on Earth is Freshwater and useable by Humans, animals, and plants.

Such A Small Amount Of Fresh Water

• The 3% of useable fresh water is found– On the surface– As groundwater– Frozen in Glaciers and Ice Caps

Where Is The Fresh Water?

Surface WaterGroundwaterGlaciers/Ice Caps

Surface Water Is Found As

• 69% Ground Ice and Permafrost• 20.9% Lakes• 3.8% moisture in the soil• 2.6 % swamps and marshes• 0.49% Rivers• 0.26% In living things• 3% Atmosphere

Most Freshwater on Earth is FROZEN