VOLCANOES By Karinsa Kelly. What is a Volcano? “A volcano is most commonly a conical hill or...

VOLCANOESBy Karinsa Kelly

What is a Volcano?

“A volcano is most commonly a conical hill or mountain built around a vent that

connects with reservoirs of molten

rock below the surface of the Earth.

The term volcano also refers to the opening or vent through which the molten rock and associated gases are

expelled.”

The three main types of volcanoes

Shield: Low viscosity magma; continuous eruptions build up many layers of lava

The three main types of volcanoes

Composite, or stratovolcano: built up from many periodic eruptions of more viscous lava

The three main types of volcanoesCinder cone: most common, smallest, sometimes

found on the sides of other types of volcanoes

Now let’s make our own volcanoes!

Here are the directions!•Build your volcano: shield, composite, or cinder cone. Remember to leave an opening in the top!•Into your food coloring cup, pour the vinegar and dish soap. Mix with craft stick.•Put on your GOGGLES! Safety is awesome.•Pour baking soda into your cup inside your volcano.•Pour vinegar mixture into your cup inside your volcano.•Wow!•If you would like another eruption, use 1 tble bs, 2 tble vinegar, few drops each dye and soap.

How is our volcano like this one?

VOLCANOES IN YOUR BACKYARD!

Why study volcanoes?

Volcanoes are dangerous!•Lahars

•Pyroclastic flows•Hot lava!

•Earthquakes

Volcanoes are also good!•Soils

•Weather•Geothermal Energy•The origin of life???

http://hvo.wr.usgs.gov/gallery/kilauea/volcanomovies/movies/Ep57%20drainback%20-%20July%205-6,%202007-small.mov

http://hvo.wr.usgs.gov/gallery/kilauea/volcanomovies/movies/Drainhole%20pistons%20day%20-%20Jun%203,%202006-small.mov