Great Lakes of the World. A slow-moving or standing body of water surrounded completely or nearly completely by land What is a lake?

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