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Child of an island
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A part of the old island known as Rakat is still visible in the sea, a little away from the new arrival - Anak Krakatoa.
After Krakatoa’s eruption in 1883, all the surrounding islands and coast were covered with hot ash. No life remained. When a scientist visited it in 1884, he found just one spider there.
But the living world on Rakat was not lost and gone forever. The wind and the sea brought seeds of plants to the island. Some seeds came with the birds that flew over the island. Plants and animals that live in the sea came to the coasts again. Small land animals like ants, termites or even rats and lizards travelled to the island on plants floating in the sea. The island was soon teeming with plants and animals.



evolution of Island creation

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  • Standard Eight Unit Two 9.Anak Krakatoa or the child of an island – Science Magazine
  • Night view
  • crater
  • Spider lizard Ants

Transcript

  • 1. DnyansamwarDhini EDucational institutionshirwal’s********************************sou. sushilatai paranjapEviDyalaya atittal :- KhanDala Dist :- satarapowEr point prEsEtationmr.GhaDaGE m.G.ghadagemahesh01@gmail.com
  • 2. Unit - Two9. Anak Krakatoaor thechild of an islandScience MagazineMY ENGLISH BOOKEIGHT
  • 3. anaK KraKatoaor thEchilD of an islanDKrakatoa is an island in the Sunda Strait between Java andSumatra in Indonesia. It is known for its volcano which eruptsregularly.
  • 4. Global viEwanaKKraKatoa
  • 5. anaK KraKatoa
  • 6. What is a volcano? A volcano is a crack or opening in theearth’s crust. There is a hot molten rock near the earth’s centre.Sometimes, it rises to the surface of the earth through such acrack or opening and flows out. When this happens, we say thatthe volcano has erupted.
  • 7. A volcanic eruption happens on a tremendous scale. Thick,dark clouds of smoke rise high from the opening and spread inthe sky. Big, glowing, burning chunks of rock and red hot lavaare thrown out of the crack in the earth. Very hot mud and ashare also thrown out. A great volcanic eruption can change theland forms in an area.
  • 8. Volcanoes are popularly classified into three categories :•Active volcanoes : Active volcanoes erupt regularly.•Dormant volcanoes : Dormant volcanoes are now quiet.However, we find information about their eruptions in history.•Extinct volcanoes : Geographers can guess (by looking at therock formation) that they used to erupt long, long ago, but there isno record of it in history.
  • 9. The collapse of KraKaToaKrakatoa is an active volcano. It has erupted many timescausing great disasters. The worst of the eruption tookplace in August 1883. The volcano erupted with such aloud boom that it was heard more than 35000 km awayin Australia. It is believed to be the loudest sound thatman has ever heard. The island, which was volcanicmountain, collapsed on itself. The dust that was thrownup in the eruption rose to about 80km in the sky. Itspread in the sky around the world and later settled indifferent parts of the world thousands of kilometersaway.
  • 10. The eruption of krakatoaAugust 1883
  • 11. Night viewNight view
  • 12. The eruption caused great giant waves or tsunamis in the seanear the island. About 165 villages and towns were destroyed dueto the eruption and the tsunamis. The eruption destroyed twothirds of the island of Krakatoa. It collapsed beneath the surface ofthe sea, creating a huge crater or hole. The hole was more than 6km wide.crater
  • 13. the birth of anak krakatoaIn 1927, a plume of smoke rose out of the water onthe crater. It was followed by another eruption. A fewdays later, a new island volcano broke water. How did ithappen?
  • 14. When the underwater volcano threw up ash and rock, itwas quickly taken away by the sea water. But then the lavastarted following out of the crater faster. This volcanicmaterial was not taken away by the weaves, and a newmountain began to grow. It kept growing and was seenabove the water. Thus, a new island grew from the old islandof Krakatoa. It was named ‘Anak Krakatoa’ or the ‘Child ofKrakatoa’.Anak krakatoa is still an active volcano. Eruptions havebegun again since 1994. It lies quiet for a few days and thenagain there are eruptions. With more lava flowing out, theisland is still growing bigger. Since 1950, the island hasgrown at an average rate of five inches per week!
  • 15. A part of the old island known as Rakat is still visiblein the sea, a little away from the new arrival - AnakKrakatoa.After Krakatoa’s eruption in 1883, all the surroundingislands and coast were covered with hot ash. No liferemained. When a scientist visited it in 1884, he foundjust one spider there.But the living world on Rakat was not lost and goneforever. The wind and the sea brought seeds of plantsto the island. Some seeds came with the birds that flewover the island. Plants and animals that live in the seacame to the coasts again. Small land animals like ants,termites or even rats and lizards travelled to the islandon plants floating in the sea. The island was soonteeming with plants and animals.
  • 16. AntsSpider LizardLizard
  • 17. It was like a laboratory where scientists can see howliving things slowly develop in an area. Today,scientists can observe this also in a part of Krakatoa,which does not get covered with volcanic ash.The western coast of Java was greatly affected bykrakatoa’s eruption. Very few human beings wereleft there. But the wild animals and plants in thatarea grew in number again. In fact, wildlife grewnaturally since there were no human beings tointerfere with it – there was no one there to cut thetrees or kill the animals. So, this region has nowbecome rich in wildlife.********