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Birding begins now. If you are looking for that ideal location to spot as many birds in a season then, with binoculars in hand, and with the support of an experienced a good bird and wildlife team, you will be amazed by the variety of Sri Lanka’s avian species.

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      The theory that the continents have moved or drifted about ("continental drift") was first advanced by a German scientist, Alfred Wegener, in 1912.

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If you asked a biologist to list the most essential things for life, water would be right at the top. Water is absolutely essential to every form of life that we know. Every living cell-of plant and animal alike- depends on this substance.

As you may know, of every ten pounds of your weight, abut seven pounds is nothing but water. Much the same is true of other living things. Without water to drink, human beings die in a short time.

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Everybody knows the ocean is salty. But why should an inland lake like the Great Salt Lake be salty? To understand this, we have to know how lakes are formed and what happens to them.

Lakes result from the flow of water into low areas. Lake water comes largely from rainfall and melting snow. The water enters a lake basin through brooks, stream s, rivers, underground springs, and groundwater. Dissolved mineral matter is in the fresh water entering the lake. This dissolved mineral matter is obtained from the ground and from rocks in the area.

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The The center of the earth is a very hot place. If we could dig down thirty miles into the earth, the temperature would be about 2,200 degrees Fahrenheit. At the core or center of the earth the temperature may be about 10,000 degrees Fahrenheit. At such temperatures, rock exists in a molten form.

Lava is the molten rock, mixed with steam and gas, that is forced out of the interior of the earth. It comes from the center of the earth through cracks in the solid surfaces.

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