“WATERFALLS”

“Sometimes a river comes to the edge of a very steep drop like a cliff, and falls hundreds of meters in a roaring, splashing…”

What is WATERFALL?

Often forms in mountain environment

Source of hydroelectric Sudden break in elevation

Flowing over an erosion-resistant rock

Sudden sheer descent of a stream

Waterfall

Source of Hydroelectric

How are WATERFALLS formed ?•Flat valley

•Erosion on soft layers of rock

•The soft rock is eroded deeper and deeper

•A different levels of height → Waterfall

•Cave behind the waterfalls

Diagram of Waterfall

The hard resistant rock often collapses because the soft rock, which support the hard rock, is eroded.

Mountainous Waterfalls • A glacier has deepened a major trunk valley

• The tributary streams discharge by falls or cascades

• Among the highest in the world

Famous Waterfalls

Victoria Falls, World’s largest waterfalls, Zimbabwe

Angel Falls, world’s highest waterfall, Venezuela

Topographic Map

Satellite Images

Bibliography• http://en.wikipedia.org/wiki/Waterfalls • http://encarta.msn.com/encyclopedia_761556874/Waterfall.html • http://www.hsdejong.nl/burma/putao/target_images/hydroelectric_power_plant.jpg

http://waterfalls.fromru.com/Great/Niagara/Panoramic_View_of_Niagara_Falls.jpg • http://gallery.cs.umb.edu/gallery/albums/SnoqualmieFallsPark/ViewofFalls1.sized.jpg • Amos, Janine. Childcraft Picture Atlas. USA: World Book, Inc, 1994. 223.• Amos, Janine. Childcraft Picture Atlas. USA: World Book, Inc, 1994. 253.• Amos, Janine. Childcraft Picture Atlas. USA: World Book, Inc, 1994. 187.

•Waugh, David. The New Wider World. 2nd ed. Cheltenham, UK: Nelson Thornes Ltd, 2003. 283.

• http://www.albertorossini.com/images/photo/water/Victoria%20Falls,%20Zimbabwe,%20Africa%20-%201600x1200%20-%20ID%2045425%20-%20PREMIUM.jpg

• http://images.google.com/imgres?imgurl=http://www.albertorossini.com/images/photo/water/Victoria%2520Falls,%2520Zimbabwe,%2520Africa%2520-%25201600x1200%2520-%2520ID%252045425%2520-%2520PREMIUM.jpg&imgrefurl=

• http://www.albertorossini.com/photo_water.html&h=1200&w=1600&sz=303&tbnid=KI1R9VLg1dL9SM:&tbnh=112&tbnw=150&hl=en&start=13&prev=/images%3Fq%3DVictoria%2Bfalls%26svnum%3D10%26hl%3Den%26lr%3D

• http://www.monnikhof.com/Victoria-Falls-2.jpg • http://www.albertorossini.com/images/photo/water/Columbia%20River%20Gorge,%20Oregon

%20-%201600x1200%20-%20ID%2042612%20-%20PREMIUM.jpg • http://www.niagarafallslive.com/images/niagara_falls_aerial_photo.gif• http://www.fishweb.com/maps/chippewa/tahquamenon_river/photos/sat_view.jpg• http://www.fishweb.com/maps/chippewa/tahquamenon_river/lower_falls/index.html

• http://www.fishweb.com/maps/chippewa/tahquamenon_river/upper_falls/index.html

• http://www.ramproductions.com/wj2/326.jpg

• http://www.photo.net/samantha/medium-format/tower-falls.jpg