volcano by Shadya Karim

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Slide Notes

volcano

Published on Nov 18, 2015

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PRESENTATION OUTLINE

MALIK'S PROJECT

WHAT ARE VOLCANOES?

Photo by Kwoohoo

A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot in to the sky and either the magma pours out slowly or fragments of lava fill the sky

Photo by Werner Kunz

HOW ARE VOLCANOES FORMED?

Photo by EL@Seattle

Volcanoes are made when magma from the upper mantle works its way to the surface. At the surface it erupts to create lava flows and ash deposits. Later overtime as the volcano erupts it gets bigger.

Photo by Lenny Photography

Untitled Slide

DID YOU KNOW?

350 MILLION PEOPLE LIVE NEAR AN ACTIVE VOLCANO

Photo by osolev

WHAT CUASES VOLCANOES TO ERUPT?

Photo by dvfig

THERE ARE 4 LAYERS OF THE EARTH

The earth is made of over 50 large plates of rock. But , there are only 7 main ones. Sometimes the plates collide and some times they crack open. Separation of the plates causes heat and the mantle underneath the earths to melt and turn to magma. More hot magma collects underneath the surface of the earth until the pressure is high enough , and the volcano erupts.

Photo by @Doug88888

DID YOU KNOW MAGMA CAN GETAS HOT AS 1300 DEGREES CELSUIS

Photo by U.S. Geological Survey

THE END.

Photo by kevin dooley

Shadya Karim