Transcript Volcanoes are Hot Stuff - Scuola Leonardo da Vinci

SCUOLA PRIMARIA LEONARDO DA VINCI
ANNO SCOLASTICO 2010-2011 - CLASSE IV C
HELLO EVERYBODY !
We are 24 pupils of“Leonardo da Vinci” Primary School
Our names are
Davide, Michele, Giacomo, Elena, Diego, Luca, Silvia C.,
Rachele, Christina, Federica, Silvia F., Lorenzo, Matteo, Viola,
Melania, Filippo, Isabella, Jennifer, Laura, Francesca, Anna,
Mattia, Alessio, Greta.
We worked on this project for a long time and we hope you all
will enjoy it. If you want to discover all the activities of our
school just click on
http://www.scuolaleonardodavinci.it
The End
slide 17
Sing a song
slide 16
Volcanoes
slide 1
Long ago
slide 5
Introduction
slide 2
The Earth
inside out
slide 4
Home
hypertext
map slide 3
Earth’s plates
slide 7
Continental
drift slide 8
Formation
slide 9
How a volcano
begins slide 10
Volcano theory
slide 15
Why?
slide 11
Where are the
volcanoes?
Slide 14
A volcanologists
Slide 13
The Pangaea
slide 6
Vulcan
Slide 12
Hypertext
M
A
P
Lets take a look inside
Although
the
Earth
appears to be made up of
solid rock to us ,it’s
actually made up of
three distinct layers: core
(inner
and
outer),mantle,
(inner
and outer) , crust .
CRUST
is not a solid
shell; it is broken up into
huge, thick plates that
drift
atop
the
soft,
underlying mantle.
FOR MANY YEARS IT
WAS
THE
BELIVED
THAT
LOCATION OF THE
CONTINENTS
WAS
FIXED.
WAS
IT
BELIEVED
CONTINENTS
THAT
WERE
SIMPLY AREAS WHERE
THE CRUST WAS TO HIGH
FOR
THE
OCEAN TO
COVER THEM ALL.
In 1915 it was
hypothesized that
there was an
original
supercontinent
which was named
Pangaea, meaning
"All- land, “.
It began breaking
up during the
TRIASSIC (late
period) .
The plates are made of rock
and drift all over the globe;
they move both horizontally
and vertically . Over long
periods of time, the plates
also change in size as their
margins are added to, crushed
together, or pushed back into
the Earth's mantle.
Parts of the Earth's crust slowly drift atop
a liquid core.
Volcanoes are formed
when plates hit each
other. One of the
plates goes under the
other. Volcanoes can
also be formed when
the plates go away
from each other.
•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.
WHY
Pressure builds deep in the Earth where the magma is.
Suddenly the gases escape and violently explode. It
is a kind of toothpaste squirting out of a tube when
you give it a hard squeeze.
Did you know?
The name "volcano" has its origin from the
name of Vulcan, a god of fire in Roman
mythology.
It was belived that his forge was located
beneath Mount Etna.
There the god and his helpers forged
weapons for gods and heroes.
E
R
U
P
T
I
O
N
S
Various
Mr. Stoppato
is a volcanologist. Being a volcanologist is
kinds one of the most dangerous scientific
professions there is. He frequently visits
of
volcanoes to observe volcanic eruptions,
collect rock and lava samples.
Volcano Volcanologists study volcanoes in order to
better predict eruptions.
COUNT
THE TOTAL
AMOUNT
OF ACTIVE
vOLCANOES AND
THEN FIND ALL
THE PLACES ON A
MAP
One of the theories about dinosaur
extintion says that huge volcanoes
erupted, covered the land with lava,
and filled the air with huge clouds
of dust.
The weather changed
unusually hot and cold.
between
Plants died over long periods of time.
The plant-eaters died, followed by
meat-eaters.
By the time eruptions stopped, many
plants and
animals includinng
dinosaurs, were gone.
What's it like when volcanoes blow?
This is something you ought to know.
Pressure builds without interruption
and then explodes in a volcanic eruption.
When volcanoes erupt, here’s what they do:
the pressure makes ash and lava spew.
Boulders can get thrown through the air,
Move back! —don’t stand and stare!
It’s letting off pressure, it’s not going to wait.
It’s going to get to that balanced state
where forces are equal: equilibrium.
Then the pressure starts building up again.
What's it like when volcanoes blow?
This is something you ought to know.
Pressure builds without interruption
and then explodes in a volcanic eruption.
Remember this from your science classes?
A volcano’s forces are magma and gases.
The underground pressure gets too high
and the volcano blows up in the sky.
What's it like when volcanoes blow?
This is something you ought to know.
Pressure builds without interruption
and then explodes in a volcanic eruption.
http://www.scuolaleonardodavinci.it/
Anno scolastico 2010 - 2011
Lavoro svolto dalla classe IV C guidata dall’insegnante
Anna Tanimi