The mouth of a river also used to be a very good place to build a town. Large boats that cross the sea to other countries can sail into the mouth of the river to unload their cargo and to load local produce to take elsewhere.
Small boats can sail up and down the river taking goods to and from the towns that are further inland.
Lots of towns are named after river crossings or the rivers that flow through them. Oxford is named after a ford where people used to take their oxen across the river Thames. Stourbridge is a town in the West Midlands where there is an old bridge over the river Stour.
Dartmouth in Devon is town at the mouth of the river Dart. How many towns in your area are named after rivers or river crossings? Many Welsh towns are named after the rivers that they are on, just as they are in England.
Aberystwyth is town at the mouth aber of the river Ystwyth. The faster a river flows, the more erosion it causes in the soil and rocks around it. Over millions of years streams and rivers will remove more and more material from the area around them and cut bigger and bigger paths for themselves. This is how valleys are created. Even quite small streams can create big valleys over a long time.
When the slope that rivers are flowing down stops being so steep, rivers slow down and instead of rushing down the straightest path through the valley, they often start to curve and bend. These curves are called meanders.
Erosion on the bends of the meanders means that they are slowly changing shape and that path the river takes will gradually change. Sometimes the erosion will cut a straight path for the river to take and leave what used to be a bend isolated from the river.
Sometimes to make it easier to for boats to travel up and down rivers, people change the way that the river flows. Sometimes they make the river wider or make it deeper so that bigger boats can travel on it. When the river is too steep and flows to fast, they might put in locks to make it safer for the boats to travel. Rivers have also been used for a long time to help people work equipment.
People would build mills to grind corn and grain near to rivers so that they could use a water wheel to work the mill. The bottom of the wheel would be put into the water, and when the water turned the wheel, the wheel would make the equipment in the mill turn and grind up the grain.
Today, instead of using a wheel to operate equipment, we build big dams across the rivers and use the force of the water to turn turbines and generate electricity to power our machines.
We call this hydro-electricity because it is generated from water. Bank — The riverbank is the land at the side of the river. Basin — Rainwater that falls on hills flows down the side of the hills into rivers.
A river basin the group of hills, valleys and lakes that water flows into the river from. Bed — The bed is the bottom of a river. A riverbed can be made of sand, rocks or mud depending on the river. Canal — A man-made waterway that is used so that boats can transport goods across bits of the country where there are no rivers they can use. Current — The strength and speed of the river. Water always flows downhill; the steeper the ground is, the stronger the current will be.
Delta — A wide muddy or sandy area where some rivers meet the sea. The river slows down and drops all the sediments it was carrying. The Egyptians made paper and boats from the reeds. Find out about Egyptian Writing. The Nile also gave the ancient Egyptians food. They used spears and nets to catch fish.
They would also use the nets to catch birds that flew close to the surface of the water. Another way the Nile helped the ancient Egyptians was in trade. The Nile was the quickest and easiest way to travel from place to place. This area was known as the Black Land.
Further away from the river was the Red Land , a region of inhospitable desert. The River Nile flooded every year between June and September, in a season the Egyptians called akhet - the inundation. Melting snow and heavy summer rain in the Ethiopian Mountains sent a torrent of water causing the banks of the River Nile in Egypt to overflow on the flat desert land. Why does the Nile not flood now? Hapi was the Nile god. Honouring a god was very important, so when a flood came the Egyptians would thank Hapi for bringing fertility to the land.
What is a river? A river is freshwater flowing across the surface of the land, usually to the sea. The River Channel Rivers flow in channels.
As the river flows downstream, it gains more water from other streams, rivers, springs, added rainfall, and other water sources. What is a river? A river is freshwater flowing across the surface of the land, usually to the sea.
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The River Nile is about 6, km (4, miles) in length and is the longest river in Africa and in the world. Although it is generally associated with Egypt, only 22% of the Nile’s course runs through Egypt. Elementary School Middle School High School. Didn't find what you need? • Ask A Librarian.
As the river flows downstream, it gains more water from other streams, rivers, springs, added rainfall, and other water sources. A river is freshwater flowing across the surface of the land, usually to the sea. Some rivers flow into the sea but other rivers flow into lakes or bigger rivers. The start of a river is called the source. The source of a river is the furthest point on the river from its mouth.