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All about volcanoes

All about volcanoes






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    All about volcanoes All about volcanoes Presentation Transcript

    • Ms. Cormican3rd Grade Science
    • Definitions ash cloud - an ash cloud is the cloud of ash that forms in the air after some volcanic eruptions. conduit - a conduit is a passage through which magma (molten rock) flows in a volcano. crust - the crust is Earths outermost, rocky layer. lava - lava is molten rock; it usually comes out of erupting volcanoes. magma chamber - a magma chamber contains magma (molten rock) deep within the Earths crust.side vent - a side vent is a vent in the side of a volcano. vent - a vent is an opening in the Earths surface through which volcanic materials erupt.
    • What is a volcano?  A volcano is a vent or chimney that connects molten rock (magma) from within the Earth’s crust to the Earths surface.  The volcano includes the surrounding cone of erupted material.
    • 3 Types of Volcanoes Shield Volcanoes Cinder Cone Volcanoes Composite Volcanoes These volcanoes get their name b y the way they are shaped and what they are made of.
    • Shield Volcanoes  Are built almost entirely of fluid lava flows.  Flow after flow pours out all directions in this volcano.  The Hawaiian Island are composed of chains of these volcanoes.
    • Shield Volcanoes On the next slide you will watch a video about shield slides. Once you click the video will begin so be ready to listen!
    • Cinder Cone Volcanoes  Simplest types of volcano.  Have a bowl shaped crater at the top and rarely rise more than a thousand feet or so above their surroundings.  Many are found in western North America.
    • Cinder Cone Volcanoes On the next slide you will watch a video on cinder cone volcanoes Be ready to listen because the video begins as soon as you click to the next slide. Enjoy!!
    • Composite Cone Volcanoes  Develop from repeated explosive and non explosive eruptions.  These volcanoes are the largest !  St. Augustine in Alaska is an example of composite cone.
    • Composite Cone Volcanoes Get ready to watch a video about composite cone volcanoes!! Once again, open your ears and listen to the interesting information.
    • The Volcano Song!! One the next slide you will have the opportunity to learn about volcano eruptions through a fun song! Get ready for the song to start as soon as you click on the next slide!!
    • Interesting Facts Indonesia has the most active volcanoes in the world. The word volcano comes from an ancient god named Vulcan. Mars has the largest volcano solar system. There are over 1900 active volcanoes on Earth Mauna kea is the tallest volcano in the world. Volcanoes are on land and in sea. Volcanic eruptions feature ash, rock, gases, and lava!
    • What to think about… Vocabulary words What are the 3 types of volcanoes? Describe how a volcano eruption happens Please click here to complete your next activity.