Rivers and streams information River creatures
Anaconda
Class Reptiles
Order: lizards and snakes
Size: 9m (291/2ft)
Family: pythons and boas.
Conservation status: No threatened.
Scientific name: Eunectes murinus.
Habitat: swampy river valleys, stream banks.
Range: south America south to Argentina.
One of the world‘s longest snakes, the anaconda spends much of its life in slowly fresh water but also climbs small trees and bushes.
Boutu
Class: mammals
Order: whales
Size: 1.8-2.7m (6-9ft)
Family: river dolphins
Scientific name: Inia geoffrensis
Range: Amazon basin
Diet: Fish, some crustaceans. Conservation status: vulnerable. Habitat: rivers, streams.
The boutu has a total of 100 teeth or more! Their eyes are very small seem to be more working than those of other river dolphins. Boutus feed normally on small fish and some crustaceans using echolocation clicks to find their prey.
Two notes: the river has a lot of fish and I only chose the anaconda and the boutu.
How is a river formed?
A river is formed when water flows naturally between clearly defined banks. When rain falls or snow melts some of the water runs off the land forming trickles of water in folds of the land. These trickles eventually merge together to form a stream.
When a river flows over bands of hard then softer rock there will probably be one or more waterfalls or rapids where the different types of rock meet.
There are a lot of streams in valleys.
The longest rivers in the world!
River Country Miles Kilometers
Nile Egypt 4,145 6,670
Amazon Brazil 4,000 6,404
Chang jiang-yantze China 3,964 6,378
Mississippi-Missouri U.S.A. 3,740 6,021
Yenisei-Angara Russia 3,442 5,540
Hydroelectric power
What is a dam?
A dam is normally made by man it is build across a river flow however some dams are built to make electric power.
These are electric turbines inside a dam. When the water from the dam passes through the turbines it spins. It makes electricity.
Cross section of river zones
When rivers run into the ocean where rivers meet the ocean is called the mouth of the river. Soil and dirt carried by these rivers is deposited at the mouth and new land is formed. The new soil-rich land is known as a delta. The Amazon River is the second longest river in the world. Like all large rivers the Amazon deposits a lot of soil and sediment forming a delta as it enters the ocean. Its delta is located in brazil.
Anaconda
Class Reptiles
Order: lizards and snakes
Size: 9m (291/2ft)
Family: pythons and boas.
Conservation status: No threatened.
Scientific name: Eunectes murinus.
Habitat: swampy river valleys, stream banks.
Range: south America south to Argentina.
One of the world‘s longest snakes, the anaconda spends much of its life in slowly fresh water but also climbs small trees and bushes.
Boutu
Class: mammals
Order: whales
Size: 1.8-2.7m (6-9ft)
Family: river dolphins
Scientific name: Inia geoffrensis
Range: Amazon basin
Diet: Fish, some crustaceans. Conservation status: vulnerable. Habitat: rivers, streams.
The boutu has a total of 100 teeth or more! Their eyes are very small seem to be more working than those of other river dolphins. Boutus feed normally on small fish and some crustaceans using echolocation clicks to find their prey.
Two notes: the river has a lot of fish and I only chose the anaconda and the boutu.
How is a river formed?
A river is formed when water flows naturally between clearly defined banks. When rain falls or snow melts some of the water runs off the land forming trickles of water in folds of the land. These trickles eventually merge together to form a stream.
When a river flows over bands of hard then softer rock there will probably be one or more waterfalls or rapids where the different types of rock meet.
There are a lot of streams in valleys.
The longest rivers in the world!
River Country Miles Kilometers
Nile Egypt 4,145 6,670
Amazon Brazil 4,000 6,404
Chang jiang-yantze China 3,964 6,378
Mississippi-Missouri U.S.A. 3,740 6,021
Yenisei-Angara Russia 3,442 5,540
Hydroelectric power
What is a dam?
A dam is normally made by man it is build across a river flow however some dams are built to make electric power.
These are electric turbines inside a dam. When the water from the dam passes through the turbines it spins. It makes electricity.
Cross section of river zones
When rivers run into the ocean where rivers meet the ocean is called the mouth of the river. Soil and dirt carried by these rivers is deposited at the mouth and new land is formed. The new soil-rich land is known as a delta. The Amazon River is the second longest river in the world. Like all large rivers the Amazon deposits a lot of soil and sediment forming a delta as it enters the ocean. Its delta is located in brazil.
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