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Fed by rains during rainy seasons and by snow during summer seasons. Water is available throughout the year. Example:Himalayan rivers
PERENNIAL RIVERS
Fed by rain only. Water is not available at all times. Example: Peninsular rivers
NON-PERENNIAL RIVERS
A cascade of water falling from a height, formed when a river or stream flows over a steep incline.
WATERFALLS
A muddy and sandy area near the mouth of a river. They are wetlands that form as rivers empty their water and sediment into another body of water.
DELTA
surrounding wetlands are bodies of brackish water usually found where rivers meet the sea.
ESTUARY
when a meander grows so big and loopy that two bends of the river join together. Once the meander bends join, the flow of water reduces and sediment begins to build up. Over time oxbow lakes will fill with sediment and can even disappear.
Oxbow lakes
is a winding curve or bend of a river.
MEANDER
The place where a river enters a lake, larger river, or the ocean is called
MOUTH
The place where a river begins or originates from is called
SOURCE
occurs where two or more flowing bodies of water join together to form a single channel.
CONFLUENCE
When a large river breaks into small rivers, it is called
Distributary
When a small stream or river joins the large or main river, it is called
tributary
is a ribbon-like body of water that flows downhill from the force of gravity
RIVER
They are primarily used to store water, control flooding, and generate hydro power.
DAM
is a type of small dam with large gates, built to divert the river water for irrigation systems.
BARRAGE
is a man made lake that holds the back water, primarily used for storage purposes.
RESERVOIR
is the area around a river that is covered in times of flood.
FLOODPLAIN
Wind flows from high to low pressure areas. A low pressure formation is called
DEPRESSION
is a system of winds rotating counterclockwise in the Northern Hemisphere around a low pressure center. The swirling air rises and cools, creating clouds and precipitation.
CYCLONIC STORMS
The air over the land gets heated and rises. This causes the winds to flow from the oceans towards the land, which gives rise to
Monsoon winds
The first American woman to travel to space
Sally Ride
Russian cosmonaut became the first man to travel to space in 1961
Yuri Gagarin
became the first man to walk on the moon in 1969.
Neil Armstrong
the first robot that went to the space center
Kirobo
the author of “Cosmos, a personal voyage”
Carl Sagan