Friday 14 March 2014
Homework - 14th March 2014
This week in Big Ben class we have been preparing to go on our River trip to Teddington and Kingston to learn more about the River Thames. What do you know already about rivers? Try to include as much vocabulary as you can.
Here are some words to help you:
estuary mouth watershed transportation
source tributary meander waterfall gorge
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What is a river?
ReplyDeleteA river is a large natural stream of water flowing downhill which goes through lakes, smaller streams right into the Ocean.
How do they help people?
They help us by providing water, fish and transport the goods. People in the ancient days lived by rivers because it helped them get food and water is well but they had to get that food from hand or to clean their water they had to put heavy rocks and wood into the river to clean their water.
Information about rivers!
When rivers toss and turn they are called meanders. A source is where a river starts and the Mouth is where the river ends. A watershed is where the ground sucks up water and pushes it under ground and in underground streams they go back to the main river. If it rains too much the underground streams will put too much water into the main river and it will flood and that is what cozzes flooding from rivers.
World’s largest rivers!
The largest, longest and the biggest river in the world is the Nile it is 6,850 kilometers and 4,201 miles and it goes through Ethiopia, Sudan and Egypt in Africa.
The second largest, longest and biggest river in the world is the Amazon it is 6,640 kilometers and 3,969 miles it flows through the Amazon rainforest in Brazil in South America.
The largest, longest river in Britten is the river seven it is 354 kilometers and 220 miles and it flows through mid-Wales. You call it the river seven because it is shaped like the number seven.
This was by Senuda.
DeleteI learnt about the source if the river wich Is the start of the river. I also learnt a lot of other words like
ReplyDeleteEstuary, meander, tributy ,watershed and transportation
What is a river?
ReplyDeleteA river is fresh water flowing across the land surface. Rivers usually originat from the mountains (glaciars) , this is called the source. Rivers flow in a channel, the bottom of this channel is called the bed and the sides are called the banks. Rivers after originating in the mountains flows through the planes and join the sea.
How rivers are formed?
When small streams or branches of water known as tributaries join together a river is formed.A river grows bigger and wider as it is joined by more and more tributaries along its course.
What are gorges?
A gorge is a narrow valley with steep, rocky walls located between mountains. They are formed by erosion due to powerful rivers of glacial melt water flowing through the valleys.
What is a river basin?
A river basin is the part of the land drained by a river and its tributaries.
What is a watershed?
A watershed is a ridge of high land dividing two different river basins.
What is a waterfall?
A waterfall is a river's steep fall over a rocky ledge into a plunch pool bellow. Waterfalls are generally formed when the river is flowing through the mountains. Waterfalls are source of hydelpower energy.
What is meander?
When the river enters the plains it becomes slow. It starts twisting and turning around stones . It causes areas of slower and faster water movement. The river starts flowing from side to side in a winding course. It forms horse shoe like loops called meanders.
What is a mouth?
The place were the river meets the sea , ocean, lake or other rivers is called the mouth.
When the river joins the sea it often widens and form brod inlet called an estuary.
Sometimes at the mouth of the river , areas of flat and fertile land are found called deltas. Deltas are formed by slow moving river's deposits of sediment.
River transportation
River shapes the land in different ways as it moves from its source to the mouth. It causes erosion of rocks and soil along the river bed and banks. These eroded materials are then transported by the river to different places. When the river loses its energy and becomes slower it deposits the materials it is carrying. These are called sediments and they often form deltas.
Rivers play a very important role in human civilisation.
This was posted by Aaratrika.
DeleteThe longest river in the world is the Nile. But the biggest river is the Amazon the difference between the longest and biggest is that the biggest is the one which has more water. The Amazon has a average of 120,000 cubic metres. The source of Thames is marked by a ancient ash tree.
ReplyDeleteThe biggest river in the would is the nile and the second biggist is the amizon river.The source is the start of a river. When the rain toutchs the grass the watershead collects it and put it in the river.
ReplyDeleteby Gurtej
A start of a river is called "source" and the finish is called the "mouth".In river the top is hotter than the bottom.A meander is where it goes left and right.Tributary is where a little river meets a longer river.Eastuary is where is where the water goes into the river.The longest tributary of River Thames is the River Way.A waterfall is where water fales down.The tallest waterfall in the U.K is called Easa'chual Aluinn in Scotland.
ReplyDeleteBY Maria
Rivers
ReplyDeleteRivers are fresh water streams joined together into a river. The start of a river is called a source (it's normally a hill or mountain). The end of a river is called a estuary (that is normally sea or ocean). What makes big streams? This will explain. Tributaries are when tiny, thin streams which join bigger streams to form wide, large rivers. The water shed is land, which drains the water underground on the journey to the river. While the water is coming the river meanders through the land. Meander means curbing, for e.g. Different directions. Back at the source water me is rushing down the mountain in a waterfall. A waterfall is lots of water rushing down a cliff.
This is how the river changes:
1. The current is so strong that stones attached to the river bank come off, which is called erosion.
2. The rock then gets transported, which is known as transportation. Big rocks get dragged along, whilst little rocks (solution) floats at the surface.
3. The stones are dropped, which is called deposition.
Lakes and weirs control the water. A weir is closed when there is a flood and the gates are all open when there is a drought. Gorges are deep V-shaped valleys, which are formed when a river is flowing on a flat land taking the surface away from it for a very long period of time.
- Anya Agarwal
What is a River
ReplyDeleteA River is a natural watercourse usually freshwater, flowing towards an ocean, a lake,
a sea or another river. The largest, longest river in the world is the River Nile.
Small rivers may be called by several other names, including stream, creek, brook and
rivulet.
Rivers are part of the hydrological cycle. Water generally collects in a river from
precipitation (when water vapor in the atmosphere condenses and becomes heavy
enough to fall to the ground) through a drainage basin from sources such as ground
water recharge, springs and the release of stored water in natural ice and snow packs.
What is a Tributary
A Tributary is a small stream of water that flows into a larger stream of water.
What is a Gorge
A gorge is a deep channel formed by a river that has eroded the earth’s crust over
many years.
What is a Watershed
A watershed is the area of the land where all of the water that is under it or drains off
of it goes into the same place.
What is a Meander
A meander is a broad bend in a supple watercourse.
What is an Estuary
An estuary is the mouth of the river or part of a river that is below sea level that has
Freshwater at low tides and salt water at high tides.
By Jasleen
Rivers look fun but they are very extremely dangerous. The mouth of the river is when the rain goes out to sea. Streams you can cross but rivers are extremely hard to cross. Waterfalls are when the water falls down a big hill. Where I live in London I am very close to the River Thames. The river is very interesting to visit but this Winter I have learnt how much they can flood too.
ReplyDeleteBy Carlos
I know that rivers all lead to the sea and that the high tide comes in two times a day. The high tide is when water from the river, sea or ocean gets pushed up onto dry land. It stays there for about 6 hours and then gets pushed back into the riveer. This is all made by the sun and the moon pushing and pulling forces.
ReplyDeleteI aso know that the beginning of the river is called a source and that the end is called the mouth. The water goes down to the mouth because the source is a high mountain, so the water cannot go up the mountain, because of gravity, it would just tumble back down.
When water goes flowing down in different directions down the river and weaves in and out this is called Meander.
A waterfall is when a river bed finishes suddenly and all the water falls straight down. Eventually it reaches another part of the sea
bed.
By Zarah
ReplyDeleteThe smallest river in the world is the Roe river.The meander is when the river is flowing side to side.The mouth is where the river meets the sea.A watershed is a river divided into two different river basins.A waterfall is water falling from a height formed when a river or stream flows.The top 3 biggest rivers are the Nile,Amazon and Mississippi