Проектные работы моих учеников

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Sak -Acton -the longest underwater cave system in the world, Mexico By Gasanova Aida, Form 10a

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In the maze of underground caves jungles of Quintana Roo, on the yucatán Peninsula, Mexico, has the longest of all known today underground rivers. Concurrently it has the status of the most impressive Mexican attractions, which impresses with its wonderful geological formations. The twists and turns of water flow in limestone caves extend for 215 km. It is included in the system of underground rivers, called Sak-Acton that Maya language is translated as "white cave". Its total length reaches several tens of thousands of kilometers, of which studied no more than 1%.

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Water pool Sak-Acton connects the two complex underground cave systems, between which lies a distance of more than 181 km According to the results of scientific research, the origin of the river took place about 65 million years. There is an assumption that in those ancient times on the territory of the Mexican Peninsula fell large meteorite that formed a huge crater (284 km), completely freaked numerous depressions and cracks. Some time later, the crater was filled with rain water, which has formed a unique system of underground rivers.

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Sak-Acton was discovered at the whim of the case at the end of January 1989 two divers-cavers. They arrived in Mexico from the U.S. to commit the planned dives into the underground lake in the Caribbean coast, which is situated on the territory of the national tourist and historical zones of the Mayan Riviera. The temperature of the mineral are always crystal-clear waters of the river Suck-Acton flowing in the arms of kaleidoscope stalactite labyrinths, always remains within 23-24°C.

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Fully open all the picturesqueness of the river Suck- Actun using underwater tour, during which you will have a great opportunity to enjoy the caves dotted with stalactites, stalagmites and other unusual forms, created by nature. In the underworld there are several species of fish, prawns, catfish, freshwater crayfish and five species of bats.

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Fans of extreme dives from around the world visit this beautiful natural landmark. It also will be able to enjoy and tourists aesthetes, which certainly will appeal to the local shop. Not only the Mayan attributed to the river Sak-Acton supernatural abilities: many people who have been in the depths of the cave system, talk about the mysteries and unexplained things that happen there. Some visitors say that this place alive, and after visiting the underground river as if life begins anew, takes a new countdown. Here it becomes clear why since ancient times, the Maya revered flowing underground river not only as a vital source of fresh water, but also as an important part of the spiritual world.

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Once pictures Sak-Acton hit National Geographic Channel, soon after which was assembled crew, which in January 2013 went to the Yucatan Peninsula to make a documentary about a small part of a huge underground system of rivers.

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St . Basil's Cathedral

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St. Basil's Cathedral is an Orthodox Cathedral, located on red square in Moscow. Widely known monument of Russian architecture. Until the XVII century, commonly called the Trinity, since the original wooden temple was dedicated to the Holy Trinity; it was also known as "Jerusalem", which is connected with the dedication of one of the aisles, and occurred on palm Sunday procession to him from the assumption Cathedral with the "procession of his entrance upon a donkey" of the Patriarch.

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Currently, the Intercession Cathedral — branch St. Basil's Cathedral - one of the most famous sights of Russia. For many it is a symbol of Moscow, Russia. In front of the Cathedral in 1931 is a bronze Monument to Kuzma Minin and Dmitry Pozharsky (installed on red square in 1818).

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Intercession Cathedral was built in 1555-1561 by order of Ivan the terrible to commemorate the capture of Kazan and the victory over the Kazan khanate, which happened on the day of the intercession of the blessed virgin Mary in early October 1552. There are several versions of the creators of the Cathedral

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According to one version, the architect was known Pskov master Postnik Yakovlev, nicknamed Barma . According to another widely known version of Barma and Postnik two different architects, both involved in the construction; this version is now outdated. The third version, the Cathedral was built by an unknown master of Western Europe (presumably Italian, as before - a significant part of the buildings of the Moscow Kremlin), hence such a unique style that combines the traditions of Russian architecture, European architecture of the Renaissance

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The Cathedral at the end of XVI-XIX centuries In 1588 the temple was built the Church of St. Basil, for a device which is in the North-Eastern part of the Cathedral was laid arched openings. Architecturally the Church was an independent Church with a separate entrance. At the end of the XVI century. appeared figured the Cathedral Chapter - instead of the original cover, burnt down during a fire.

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In the second half of the XVII century in the appearance of the cathedral there have been significant changes - surrounds the upper church open gallery-ambulatory blocked the vault, and over the white stone stairs built porch decorated tents

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External and internal gallery, platforms and railings of the porch were painted grass ornament. These updates were completed in 1683, and information about them is included in inscriptions on ceramic tiles that adorned the facade of the Cathedral.

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P. C. Chavski, in the book 1722 in the temple was listed 18 churches (of thrones): Trinity, Entry into Jerusalem, Paraskeva-Friday, Nikola Velikoretskaya, beheading of John the Baptist, Varlaam of Khutyn, the Apostle Andronicus, Cyprian and Iustini, Gregory the Armenian, the Location of the virgin (with the relics of blessed John), Basil the Great, virgin Feodosia Alexander Svirsky, Sergius of Radonezh, St. Mary of Egypt, Epiphany, All Saints and the Three Patriarchs.

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Выполнила Rashidova Zaira 10 «А» класс

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Unique place of our planet By Kostina Yana 8 “a”

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Marble Caves Of Chile Chico

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Marble caves are the most famous attraction of Patagonia (Chile). This Caves attract a lot of tourists from the different corners of the globe. The labyrinths created in marble nature impress the senses. The caves are an extremely special geological formation of varying colors of monoliths of marble, that have formed by waves over the past 6,200 years. There are pillars, tunnels and caverns that you can drift and explore when waters are calm.

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Capilano Suspension Bridge Park

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Capilano Suspension Bridge Park Is one of Vancouver, British Columbia’s most popular tourist attractions. The reason is simple, there are so many things to see and do. Just minutes from the bustle of downtown Vancouver, the attractions at Capilano Suspension Bridge Park offers a unique mix of adventure, history and culture making this Vancouver tourist attraction a complete British Columbia experience and an essential on your list of things to do in Vancouver, BC.

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Monte Roraima

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Mount Roraima lies on the Guiana Shield in the southeastern corner of Venezuela's 30,000-square-kilometre (12,000 sq mi) Canaima National Park forming the highest peak of Guyana's Highland Range. The tabletop mountains of the park are considered some of the oldest geological formations on Earth , dating back to some two billion years ago in the Precambrian .

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Salar de Uyuni

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The Salar was formed as a result of transformations between several prehistoric lakes. It is covered by a few meters of salt crust, which has an extraordinary flatness with the average altitude variations within one meter over the entire area of the Salar . The crust serves as a source of salt and covers a pool of brine , which is exceptionally rich in lithium . It contains 50 to 70% of the world's lithium reserves, which is in the process of being extracted. The large area, clear skies, and the exceptional flatness of the surface make the Salar an ideal object for calibrating the altimeters of Earth observation satellites.

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Cristal River

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Crystal River is at the heart of the Nature Coast of Florida. The city is situated around the magnificent Kings Bay, which is spring-fed and so keeps a constant 72 °F (22 °C) temperature year round. A cluster of 50 springs designated as a first-magnitude system feeds Kings Bay. A first-magnitude system discharges 100 cubic feet or more of water per second, which equals about 64 million gallons of water per day. Because of this discharge amount, the Crystal River Springs group is the second largest springs group in Florida, the first being Spring Creek Springs in Wakulla County near Tallahassee.

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By Popova Maria Form 9a Unique places of our planet

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Sơn Đoòng Cave ( hang Sơn Đoòng , "Mountain River cave" in Vietnamese) is a solutional cave in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam. As of 2009 it is the biggest known cave in the world, and is located near the Laos–Vietnam border. Inside is a large, fast-flowing underground river. It is formed inCarboniferous / Permian limestone . Sơn Đoòng Cave

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Sistema Sac Actun (from Spanish and Yucatec Maya meaning "White Cave System") is an underwater cave system situated along the Caribbean coast of the Yucatán Peninsula with passages to the north and west of the village of Tulum . Exploration started from Gran Cenote 5 kilometers (3.1 mi) west of Tulum . The whole of the explored cave system lies within the Municipality of Tulum (state of Quintana Roo ). Sac - Actun

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The Dead Sea also called the Salt Sea , is a salt lake bordering Jordan to the east, and Palestine and Israel to the west. Its surface and shores are 427 metres (1,401 ft) below sea level, Earth'slowest elevation on land Dead Sea

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Lake Retba or Lac Rose (meaning Pink lake) lies north of the Cap Vert peninsula of Senegal, some 30km (18 miles) north-east of the capital, Dakar in northwest Africa. It is named for its pink waters caused by Dunaliella salina algae and is known for its high salt content, up to 40% in some areas. Lake Retba

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The Verzasca is a Swiss 30-kilometre (19 mi) long mountain river originating at Pizzo Barone and flowing intoLake Maggiore. It is known for its clear turquoise water and vibrant colored rocks, as well as its treacherous currents. The Verzasca Dam is a few kilometers upriver from this lake. Verzasca

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Caño Cristales is a Colombian river located in the Serrania de la Macarena province of Meta. The river is commonly called "The River of Five Colors" or "The Liquid Rainbow", and is even referred to as the most beautiful river in the world due to its striking colors. The bed of river in the end of July - November is colored in gaudy colors, including yellow, green, blue, black, and especially red, the last caused by the Macarenia clavigera ( Podostemaceae ) on the bottom of the river. Caño Cristales

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By Nitalaev Nikita Form 10a London

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The Houses of Parliament

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The heart of London is the City

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The centre of London is Trafalgar Square. In the middle of square stands a monument to Admiral Nelson .

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The National Gallery

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The Queen of England lives in Buckingham Palace. It is a wonderful building with a monument in front of it which is the Queen Victoria Memorial.

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The Victoria and Albert Museum

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The large clock in one of the towers is Big Ben . You can hear the sound of Big Ben every hour in London