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VOLCANOES

VOLCANOES. SCUOLA PRIMARIA LEONARDO DA VINCI ANNO SCOLASTICO 2010-2011 - CLASSE IV C. We introduce ourselves and our project HELLO EVERYBODY ! We are 24 pupils of“Leonardo da Vinci” Primary School Our names are

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VOLCANOES

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  1. VOLCANOES SCUOLA PRIMARIA LEONARDO DA VINCI ANNO SCOLASTICO 2010-2011 - CLASSE IV C

  2. We introduce ourselves and our project HELLO EVERYBODY ! We are 24 pupils of“Leonardo da Vinci” Primary School Our names are Davide, Michele, Giacomo, Elena, Diego, Luca, Silvia C., Rachele, Christina, Federica, Silvia F., Lorenzo, Matteo, Viola, Melania, Filippo, Isabella, Jennifer, Laura, Francesca, Anna, Mattia, Alessio, Greta. We worked on this project for a long time and we hope you all willenjoy it. If you want to discover all the activities of our school just click on http://www.scuolaleonardodavinci.it

  3. Volcanoes slide 1 The End slide 17 Long ago slide 5 Sing a song slide 16 Introduction slide 2 The Pangaea slide 6 The Earth inside out slide 4 Home hypertext map slide 3 Earth’s plates slide 7 Continental drift slide 8 Formation slide 9 Hypertext How a volcano begins slide 10 Volcano theory slide 15 M A P Why? slide 11 Where are the volcanoes? Slide 14 A volcanologists Slide 13 Vulcan Slide 12

  4. The Earth inside out Lets take a look inside Although the Earth appears to be made up of solid rock to us ,it’s actually made up of three distinct layers: core (inner and outer),mantle, (inner and outer) , crust . CRUST is not a solid shell; it is broken up into huge, thick plates that drift atop the soft, underlying mantle.

  5. LONG AGO AND FAR AWAY FOR MANY YEARS IT WAS BELIVED THAT THE LOCATION OF THE CONTINENTS WAS FIXED. IT WAS BELIEVED THAT CONTINENTS WERE SIMPLY AREAS WHERE THE CRUST WAS TO HIGH FOR THE OCEAN TO COVER THEM ALL.

  6. THE PANGEA In 1915 it was hypothesized that there was an original supercontinent which was named Pangaea, meaning "All- land, “. It began breaking up during the TRIASSIC (late period) .

  7. EARTH’ S PLATES The plates are made of rock and drift all over the globe; they move both horizontally and vertically . Over long periods of time, the plates also change in size as their margins are added to, crushed together, or pushed back into the Earth's mantle.

  8. CONTINENTAL DRIFT Parts of the Earth's crust slowly drift atop a liquid core.

  9. FORMATION OF VOLCANOES Volcanoes are formed when plates hit each other. One of the plates goes under the other. Volcanoes can also be formed when the plates go away from each other.

  10. Deep in the Earth it is very hot. It is so hot that rocks melt. The melted rock is called magma. The magma is lighter than the rocks around it, so it rises. Sometimes it finds a crack or hole in the Earth’s crust and bursts through. HOW A VOLCANO BEGINS

  11. ? WHY Pressure builds deep in the Earth where the magma is. Suddenly the gases escape and violently explode. It is a kind of toothpaste squirting out of a tube when you give it a hard squeeze.

  12. Did you know? The name "volcano" has its origin from the name of Vulcan, a god of fire in Roman mythology. It was belived that his forge was located beneath Mount Etna. There the god and his helpers forged weapons for gods and heroes. VULCAN

  13. E R U P T I O N S A volcanologist in our school Mr. Stoppato is a volcanologist. Being a volcanologist is one of the most dangerous scientific professions there is. He frequently visits volcanoes to observe volcanic eruptions, collect rock and lava samples. Volcanologists study volcanoes in order to better predict eruptions. Various kinds of Volcano

  14. WHERE ARE THE VOLCANOES? COUNT THE TOTAL AMOUNT OF ACTIVE vOLCANOES AND THEN FIND ALL THE PLACES ON A MAP

  15. GREAT DINOSAUR EXTINCTION AND VOLCANO THEORY One of the theories about dinosaur extintion says that huge volcanoes erupted, covered the land with lava, and filled the air with huge clouds of dust. The weatherchanged between unusually hot and cold. Plants died over long periods of time. The plant-eatersdied, followed by meat-eaters. By the time eruptions stopped, many plants and animals includinng dinosaurs, were gone.

  16. What's it like when volcanoes blow? This is something you ought to know. Pressure builds without interruption and then explodes in a volcanic eruption. When volcanoes erupt, here’s what they do: the pressure makes ash and lava spew. Boulders can get thrown through the air, Move back! —don’t stand and stare! It’s letting off pressure, it’s not going to wait. It’s going to get to that balanced state where forces are equal: equilibrium. Then the pressure starts building up again. What's it like when volcanoes blow? This is something you ought to know. Pressure builds without interruption and then explodes in a volcanic eruption. Remember this from your science classes? A volcano’s forces are magma and gases. The underground pressure gets too high and the volcano blows up in the sky. What's it like when volcanoes blow? This is something you ought to know. Pressure builds without interruption and then explodes in a volcanic eruption.

  17. Anno scolastico 2010 - 2011 Lavoro svolto dalla classe IV C guidata dall’insegnante Anna Tanimi http://www.scuolaleonardodavinci.it/

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