great lakes of the world. a slow-moving or standing body of water surrounded completely or nearly...
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Great Lakes of the World
A slow-moving or standing body of water surrounded completely or nearly completely
by land
What is a lake?
Lakes visited by the class
Why do People Live
Near Lakes?
Why are lakes important?
Why have great civilizations begun near large lakes?
Lakes are…
• Lakes are bodies of water that collect in large dips or depressions in the land.
• These dips or depressions are called basins
• Lake basins are surrounded on all sides by land.
• They collect water from1. rain2. melting snow and glaciers3. river water4. underground springs
Formation of Lakes
Lakes form in many different ways
1. Barrier lakes - is a man made reservoir
2. Rift-valley lakes (Lake Tanganyika)
3. Erosion lakes - A lake, in a bowl-shaped basin worn away by a glacier.
4. Basin Lakes The depression in the Earth's surface occupied or formerly occupied by a lake and containing its shore features.
Africa is known for three great lakes
1.Lake Victoria
2.Lake Chad
3.Lake Tanganyika
Lakes of Africa
Africa’s deepest and longest lake
A large variety of beautiful fish live in the lake
It is surrounded by mountains
It is a rift-valley lake (long and narrow)
Lake Tanganyika
Many centuries ago the Earth’s surface cracked open and separated the mountains that are now on the edge of the lake
Gradually, the edges of the cracks pulled farther apart
Next, the ground dropped down many hundreds of feet and began filling up with water
How did Lake Tanganyika form?
It is a freshwater lake
Fish are a valuable resource
The lake touches four different countries: Zaire, Tanzania, Burundi, Zambia
It is a good transportation route
Facts about Lake Tanganyika
Lake Victoria is located to the northeast of lake Tanganyika
It is the second largest lake in the world
Largest lake in Africa
It is the source to the famous Nile River
It is a basin lake
It is a freshwater lake
Lake Victoria
Lake Victoria
Lake Victoria is near Mount Kilimanjaro
The lake is named for Queen Victoria of England (1800’s) when Europe first came to the lake
Many islands are in the lake
Lake Victoria
One of the small rivers that flow into Lake Victoria is the beginning of the Nile
Water flowing out is called Victoria Nile River
That river is small near Lake Victoria but becomes bigger by the time it reaches Sudan. It then is called the White Nile
It joins the Blue Nile flowing out of Ethiopia and becomes the Nile flowing northward through Egypt
Lake Victoria and the Nile
Located in western Africa
It is a basin lake
It is shared by several countries: Chad, Niger, Nigeria, Cameroon
It is dry, hot and flat there
Temperatures can reach 100 ° F
It is a freshwater lake
Lake Chad
Lake Chad is very shallow
Many cattail, papyrus, and waterlilies grow there.
Fish are a huge resource
Lake Chad
Ancient civilizations lived along the lake hundreds of years ago
Farmers near Lake Titicaca raise llamas
Potatoes (or papas) are grown near the lake First potatoes in the world were
grown here
Lakes of South America
Lake Titicaca
Resources from the lake
Fish for food
Water to drink and for crops
Reeds for furniture and boats
Lakes of South America
Lake Titicaca
Lakes of South America
Lake Titicaca
Located in Venezuela
It is actually a GULF (look at your definition of gulf)
Lakes of South America
Lake Maracaibo
Rich in petroleum deposits under the water and along the shore
Many oil derricks, or tankers, are in the lake, or gulf
The oil has helped provide money to Venezuela Huge city Own university Many different industries
Lakes of South America
Lake Maracaibo
Industries that come from petroleum
Plastics Paint Gasoline
Lakes of South America
Lake Maracaibo
Lakes of South America
Lake Maracaibo
Lake Superior Largest lake in the United States Pleasant place to fish and sail in
the summer In the winter is known as the
Graveyard of Ships Known for wild winter storms and
hurricane-force winds 1975, story of the ship, The
Edmund Fitzgerald
Great Lakes of North America
The Great Lakes Lake Superior Lake Huron Lake Erie Lake Ontario Lake Michigan
Great Lakes of North America
Great Lakes of North America