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 eruption. ...
A volcano begins as melted rock (magma) which rises from deep inside the earth
toward the surface. As the gas-filled magma rises ...
Nov 29, 1999 ... 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 ...
www.ask.com/youtube?q=What Makes A Volcano Erupt&v=-kQwudeT3ww
Jun 29, 2013 ... A quick and fun cartoon lesson about volcanoes. Great for teachers and students-
hope you guys enjoy! Be sure to subscribe if you like it, there ...
An erupting volcano can trigger tsunamis, flash floods, earthquakes, mudflows
and ... Lava domes are formed when erupting lava is too thick to flow and makes
May 13, 2015 ... A volcanic eruption with lava flowing down the side of the mountain. ... Lava (the
name for magma once it's out of the Earth), and gas does not ...
A secondary school revision resource for GCSE Geography covering key facts
about volcanoes and volcanic eruptions.
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. Henry Fountain
Nov 26, 2003 ... "One of the central problems of volcanoes is: Why do they erupt and why ... At the
same time, the loss of dissolved gases makes it more difficult ...
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