SOME INTERESTING FACTS ABOUT VOLCANOES

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					  SOME INTERESTING FACTS ABOUT VOLCANOES
I'll let you in on some interesting facts about these fiery beasts... let’s 'blow'
your mind...

FACT: The word volcano originally derived from the
name of a Roman god of fire, Vulcan and that the
biggest known volcano in our solar system is actually
on Mars. Volcanoes are usually brown, black or dark
coloured and all volcanoes have an upper part called
a crater. Believe it or not, volcanoes give off a gas
called magma. All volcanoes have a high
temperature and low gas content... Volcanic
eruptions emit ash high into the air, approximately
30km above the Earth's surface!

Large volcanic eruptions however, can reflect radiation from the sun and drop
average temperatures on Earth by approximately half a degree. It can't get
any worse than that!! Just imagine how many buildings and homes are
destroyed during all of this...

Some well known volcanic eruptions
of modern times include Mount
Krakatoa in 1883, named Olympus
Mons and measures 600km wide and
21km high. There are also volcanoes
found on the ocean floor and under
ice-caps, some may be found in
Iceland. The smallest types of
volcanoes are called cinder cones
consisting of solidified lava. I wonder
what they mean by "small'... BUT
wait there's more... Did you know
that pumice is a unique volcanic rock
that can float on water and is
sometimes used in beauty salons for
removing dry skin. Wow, at least there's something beneficial that women can
get as a result of volcanic eruptions! Nature is most definitely a force not to be
reckoned with!


BIBLIOGRAPHY:

Book source 1: Encyclopedia Britannica, page 502-508, published: 1980, Britannic. (Written by
different individuals)
Book source 2: Physical Geography.4th Edition, Written by: Authur.N.Sttrahler.(27-05-2010,
Thursday)
Internet source 1:
http://www.sciencekids.co.nz/sciencefacts/earth/volcano.html
(26-05-2010, Wednesday)
Internet source 2:
http://wiki.answers.com/Q/What_are_the_physical_characteristics_of_a_volcano
 (27-05-2010, Thursday)

Image 1: volcano-eruptions
 http://scrapetv.com/News/News%20Pages/Everyone%20Else/images-4/volcanic-eruption.jpg
Image 2: A cinder cone volcano
http://homework.syosset.k12.ny.us/teachers/mcallaha/Dynamic%20Earth/Volcano2/cinder%20
cone.jpg




BY: Michaela C. Kruger

				
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posted:10/7/2011
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