Rivers Web Quest

 

Rivers Web Quest

Task 1

1.    The bottom of a river is called a bed or a river bed.

2.    Flowing water has kinetic energy.

3.    In the past, major rivers had colonies and settlements built alongside it. In modern times, many different types of structures are built along major rivers.

4.    The three courses of rivers are the upper course, middle course and lower course. The Upper course begins at the source and the lower course ends at the mouth.

5.    a. Confluence- The place of the meeting (merging) of two or more bodies of water which can also be called a junction.

b. Delta- A triangular piece of land close to the confluence that is composed of sediment that are deposited by rivers.

c. Flood Plain- It is composed of mainly river sediments and is a low-lying ground close to the river that is prone to flooding.

d. Meander- To follow a winding course.

e. Tributary- A river or stream or some other body of water that flows into a larger river or lake.

f. Braided stream- This type of stream is characterized by the abundant supply of sediment, the high degree of slope of the stream and the channel, variations in water discharge and erodible banks.

 

 

 

 

Task 2

Facts About The World’s Longest Rivers

River

Length

Volume (River Discharge)

Location

Mouth

Nile River

6,853 km

2,830 m³/s

Tanzania, Uganda, Rwanda, Burundi, Congo-Kinshasa, Kenya, Ethiopia, Eritrea, South Sudan, Sudan and Egypt

Mediterranean Sea, Egypt

Amazon River

6,437 km

209,000 m³/s

Brazil, Colombia, Peru

Atlantic Ocean

Yangtze River

6,300 km

30,170 m³/s

South of Yellow River

East China Sea

Mississippi River

6,275 km

16,790 m³/s

Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi and Louisiana of The United States of America

Gulf of Mexico

Yenisei River

5,539 km

19,600 m³/s

Mongolia, Russia

Yenisei Gulf

Yellow River

5,464 km

2,571 m³/s

North Eastern China

Bohai Sea

Ob(i) River

5,410 km

12,480 m³/s

Central Russia

Gulf of Ob

Paraná River

4,880 km

17,290 m³/s

Argentina, Paraguay, Brazil

Rio de la Plata

Congo River

4,700 km

41,000 m³/s

Angola, Burundi, Cameroon, Central African Republic, Congo-Kinshasa, Gabon, Congo-Brazzaville, Rwanda, Tanzania, Zambia

South Atlantic Ocean

Amur River

4,444 km

11,400 m³/s

Russia and China

Strait of Tartary

 

Length and Volume vary greatly between sources.

Task 4

10 different interesting points about the Darling River:

1.    The river itself is the third longest river (The Darling River is approximately 2,740 km long)in Australia and when added with other connected rivers, it becomes the longest river system in Australia and one of the largest river systems in the world.

2.    The Darling River begins from the Great Dividing Range, southern Queensland, the New South Wales tablelands and the Blue Mountains. It gets dry as it progresses and will only flow after good rains. The Darling joins the Murray River at a town named Wentworth.

3.    It does not flow quickly in most places due to the flatness of the surrounding environment.

4.    It was named ‘Darling’ after the then Governor of New South Wales, Sir Ralph Darling.

5.    Farming has developed close to the Darling River in small areas and dams have been constructed to reduce flooding and provide a stable water supply.

6.    Water used in Adelaide comes from many reservoirs that receive pumped water from the Murray–Darling basin.

7.    There are many types of introduced species in the Darling River such as carp and cane toads which dirty the water and affect native species.

8.    The lower Darling River is currently facing drought with parts of the river completely dried out because residents of Broken Hill in the upper part do not have enough water to drink. Water management must adapt to the new situations. The river has dried up 3 times in the past 11 years. Something is different compared to the past.

9.    The water of the Darling River is being overused.

10.                       High salinity in the Darling River is recorded and requires attention. Drought and high levels of water evaporation leads to salt building up in the Darling River.

 

Links to sources for Task 4:

https://en.wikipedia.org/wiki/Darling_River

http://www.britannica.com/place/Darling-River

http://www.mdba.gov.au/about-basin

http://www.mdba.gov.au/about-basin/basin-environment/ecosystems/rivers-wetlands

http://www.abc.net.au/news/2015-06-30/water-shortages-27too-much27-for-lower-darling-farmers/6583898

http://www.abc.net.au/local/photos/2015/05/04/4229197.htm

 

 

 

Noah Nishihara

 

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