volcanoes are hot stuff
DESCRIPTION
Volcanoes are Hot Stuff. By Shana Huffaker And Doreen Snyder. How are volcanoes formed?. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/1.jpg)
Volcanoes are
Hot StuffBy
Shana HuffakerAnd
Doreen Snyder
![Page 2: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/2.jpg)
How are volcanoes formed?
![Page 3: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/3.jpg)
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. This is how a volcano
begins.
![Page 4: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/4.jpg)
Why do volcanoes
erupt?
![Page 5: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/5.jpg)
Pressure builds deep in the earth where the magma is. Suddenly the gases escape and
violently explode. It is kind of like toothpaste squirting out of a tube when you give it a hard
squeeze.
![Page 6: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/6.jpg)
What are the different kinds of
volcanoes?
![Page 7: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/7.jpg)
Volcanoes do not all look alike. Their shape is based on what type
of materials they erupt. There are three main kinds, or shapes, of
volcanoes.
![Page 8: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/8.jpg)
ShieldVolcanoes
![Page 9: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/9.jpg)
Volcanoes that build up from
many slow, steady, flows of hot lava, are
called shield volcanoes. This kind of volcano is
low and broad with gently sloping sides.
They look like a warriors shield.
![Page 10: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/10.jpg)
![Page 11: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/11.jpg)
Cinder Cone Volcanoes
![Page 12: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/12.jpg)
Cinder cone volcanoes form when solid rock and ash shoot up into the air and fall back around the volcano
opening. The cinder cone volcano has
steeply sloped sides.
![Page 13: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/13.jpg)
![Page 14: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/14.jpg)
Strato or Composite
Volcanoes
![Page 15: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/15.jpg)
Strato volcanoes, also called composite
volcanoes, erupt with molten lava, solid rock,
and ash. The layers pile up much like layers of cake and frosting. The layers form into
symmetrical cones, and the slopes are steep.
![Page 16: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/16.jpg)
![Page 17: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/17.jpg)
There is much more about volcanoes out there. Look
in books and on the internet . Have Fun!
![Page 18: Volcanoes are Hot Stuff](https://reader035.vdocuments.us/reader035/viewer/2022070405/56813e65550346895da86c6a/html5/thumbnails/18.jpg)
Pictures, Images, and information From:Soames Summerhays/Photo Researchers, Inc.
Kraft-Explorer/Photo Researchers Inc.Masao Hayashi-Dung/Photo Researchers Inc.
Why Do Volcanoes Blow Their Tops? By Melvin and Gilda Bergerwww.usgs.gov/education/learnweb/volcano/index.html