How Volcanoes Work
Whenever there is a major volcanic eruption in the world, you'll see a slew of newspaper articles and nightly news stories covering the catastrophe, all stressing...
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that
allows hot lava ... Erupting volcanoes can pose many hazards, not only in the
immediate vicinity of the .... Like ...
Some volcanic eruptions are explosive and other are not. How explosive an
eruption is depends on how runny or sticky the magma is. If magma is thin and ...
May 26, 2016 ... Volcanoes come in many shapes and sizes, ranging from common cinder cone
volcanoes that build up from repeated eruptions and lava ...
Volcanoes erupt because of density and pressure. The lower density of the
magma relative to the surrounding rocks causes it to rise (like air bubbles in
Find out what the earth make-up is, and how extreme pressure build up inside
the earth forces molten matter to be expelled out to the surface, causing a
Jan 5, 2015 ... The eruption of a volcano can be one of the planet's most destructive events —
spewing huge amounts of rock, gas and ash that can kill people.
Volcanic eruptions can either be effusive or explosive. An effusive volcanic
eruption occurs when the lava pours out onto the ground from the volcano's vent.
www.ask.com/youtube?q=How Do Volcano Erupt?&v=Zaz_m3pt8qw
Apr 2, 2010 ... The process of a volcano erupting begins with the generation of magma, which
then migrates towards the surface until the pressure and ...
When a part of the earth's upper mantle or lower crust melts, magma forms. A
volcano is essentially an opening or a vent through which this magma and the ...