When you are in Uganda, make a trip to lake Victoria. Only in this lake is home to fish, Marco, in other bodies of water the fish lived 300 million years ago. She is able to hold the inhaled air in the gills – so only makes a man: holds the air in his lungs. This fish represents the element of the so-called “adapter”, between the fish and animals on land. In addition to this unique fish in the lake full – full of crocodiles. Another phenomenon – an unimaginably rapid formation of new species and subspecies of fish – the phenomenon puts Darwin’s theory of evolution to a standstill, as he claimed that this is possible only over a long period of time. But the little fish from lake Victoria baffled not only the theory of Darwin, but of many scientists. On the same place in a few years it is again possible to observe a new appearance. And what absolutely fantastic – the ability to change the fish from this lake you can almost see already in the next generation, even if they live in your aquarium!
In addition to its rich underwater world and its inhabitants, the lake is also known in that it originates the sacred Nile. Victoria – the largest lake in Africa and second largest in the world. Fresh water in the lake is of excellent quality, Continue reading
The outline of the lesson on the subject “Man and world”. Grade 3
Topic: Bodies Of Water. The land of blue rivers and lakes
— to form an idea of the diversity of water bodies, their features, to acquaint students with major water bodies (major rivers and lakes);
— to promote students awareness of the value of wetlands as important natural resources of our country, its role in the conservation of exhaustible water resources, fostering a sense of admiration for the beauty of nature of your country;
— to continue the development of skills to read a map – display on the physical map of Belarus water bodies – rivers and lakes, ability to work independently with the textbook.
Equipment: cards with tasks for independent work, physical map of Belarus, contour maps, folding table “Sources of pollution and measures to protect water bodies”.
The course of the lesson
1. Organizational moment
2. Updating knowledge
Oral questioning of students (textbook).
3. The study of new material, review and consolidate the learned
National Park “Braslav lakes” is situated in the Northwest of the Republic of Belarus, 250 km from Minsk, with an area of about 70 hectares. It was created in August 1995 and was known as one of the most beautiful places of Belarus.
The unique ecological environment of this lake district bears the features of the ice age. The biggest lakes are Drivyaty, Snudy, Voyso, North voloso, Nedrovo, Biareža, Double, Funs, etc. are among hilly terrain. Each of them has its own characteristics and uniqueness. The total amount of water surface of the lakes is 183 square kilometres. On the lake Strusto is located the second largest island in Belarus – Chaichin (1,6 sq km sq), which has internal reservoir – a small lake.
Veloso South of the lake is the deepest in the national Park. Its maximum depth is 40.4 m, with an area of 1.2 sq km. the Lake is known for the extraordinary purity of water, its transparency is 7 m. the region’s flora has over 800 species of plants, including 20 rare and endangered listed in the Red book of the Republic of Belarus. The National Park is widely represented typical and unique (including the relic) the animal community and group separate valuable representatives of the animal world. Water ecological systems with diverse and often unique fauna – the main wealth of the Braslav Continue reading