As you know, rivers can flow into another river, the sea, the ocean or a lake.

Today we are going to study the lakes. Lakes can be natural or artificial (reservoirs).



LAKES


Lakes are natural.


  • The water in lakes is surrounded by land and it doesn´t move, it is still water.

  • Most of lakes contain fresh water, but there are lakes that contain salt water.

  • Usually, lakes are in the mountains.

  • Lakes are a habitat for animals and plants.

  • Small lakes are called ponds.

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LAKES ARE NATURAL AND THEY ARE SURROUNDED BY LAND

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LAKES CAN CONTAIN FRESH OR SALT WATER. THIS LAKE CONTAINS SALT WATER.

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SMALL LAKES ARE CALLED PONDS


RESERVOIRS

  • Resevoirs are man-made (artificial).

  • The water in reservoirs is surrounded by land and it doesn´t move, it is still water.

  • Reservoirs contain fresh water.

  • Reservoirs are used to store water. We use that water for drinking or producing electricity.

  • Reservoirs are made by building a dam in a river. A dam is a strong high wall that stops the water from a river (so water can't flow).

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RESERVOIRS ARE MAN-MADE. THEY CONTAIN FRESH WATER.

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DAMS HAVE STRONG HIGH WALLS

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WE USE DAM TO PRODUCE ELECTRICITY AND TO STORE FRESH WATER FOR DRINKING


You are going to watch a couple of videos related to lakes and reservoirs.

The first video is about Glendalough, a glacial valley with two beautiful lakes. Glendalough is in Ireland.









The second video is about the Abberton reservoir in England.