5. What Is a Volcano?
A volcano is an opening on the
surface of a planet or moon that
allows material warmer than its
surroundings to escape from its
interior. When this material escapes,
it causes an eruption.
18. Volcanoes can be active,
dormant or extinct.
An active volcano is one that has erupted within the last 10,000 years or it
has some type of activity going on.
This activity could be anything from gases being released or even
earthquakes around it.
A dormant volcano is one that hasn’t erupted in the last 10,000 years,
however there is a chance it will erupt at some point.
An extinct volcano is one that hasn’t erupted in the last 10,000 years and is
unlikely to erupt in the future.
19. The liquid inside the volcano is
called magma.
Volcanoes hold very hot liquid called magma.
Magma is rock that is so hot, it has turned into a liquid.
It glows bright orange and is held in a chamber within the
volcano.
20. Lava is very, very hot!
That’s right, lava is very hot!
It can get up to 1,250° Celsius.
This makes volcanoes very dangerous and it is why they
should be avoided.
Each volcano has a different level of risk which should always
be researched before visiting.
21. There are around 1,500 active
volcanoes in the world.
There are lots of volcanoes, in fact, there are around 1,500 which are
active.
Most volcanoes are found in countries that have coastlines on the
Pacific Ocean.
Luckily in the UK we have no active volcanoes.
22. The largest volcano on Earth is
Mauna Loa in Hawaii.
The largest volcano on Earth is in Hawaii. It’s called the Mauna Loa.
From sea level it is 4,169 metres high. However, under the sea it also
goes down another 5,000 metres.
This would make it higher than Mount Everest!
Since 1843, it has erupted 33 times.
28. Deadliest Eruption
The list below contains eruptions with more than 500 known human fatalities.
( an occurrence of death by accident, in war, or from disease)
…….These are the most deadly eruptions known. Other eruptions have been as big
or bigger than these, but no one lived nearby to be threatened (for example the
Valley of 10,000 Smokes eruption in Alaska in 1912). The Mt. St. Helens eruption in
1980 in Washington state was a far less dangerous eruption than these, only 61
humans died, although thousands of deer and other animals perished. The ancient
eruption at Santorini Island in the Mediterranean Sea in about 1650 BC certainly
killed thousands of people (and was the source of the Atlantis legend), but there are
no real estimates of the number of deaths. Remember that all of the numbers of
deaths listed here are best guesses; various books give different numbers. This list
is based on data in Volcanic Hazards: A Sourcebook on the Effects of Eruptions by
Russell J. Blong (Academic Press, 1984).
29. Deaths Volcano When Major Cause of Death
92,000 Tambora, Indonesia 1815 Starvation
36,417 Krakatau, Indonesia 1883 Tsunami
29,025 Mt. Pelee, Martinique 1902 Ash flows
25,000 Ruiz, Colombia 1985 Mudflows
14,300 Unzen, Japan 1792 Volcano collapse, tsunami
9,350 Laki, Iceland 1783 Starvation
5,110 Kelut, Indonesia 1919 Mudflows
4,011 Galunggung, Indonesia 1882 Mudflows
3,500 Vesuvius, Italy 1631 Mudflows, lava flows
30. 3,360 Vesuvius, Italy 79 Ash flows and falls
2,957 Papandayan, Indonesia 1772 Ash flows
2,942 Lamington, Papua N.G. 1951 Ash flows
2,000 El Chichon, Mexico 1982 Ash flows
1,680 Soufriere, St Vincent 1902 Ash flows
1,475 Oshima, Japan 1741 Tsunami
1,377 Asama, Japan 1783 Ash flows, mudflows
1,335 Taal, Philippines 1911 Ash flows
1,200 Mayon, Philippines 1814 Mudflows
46. ANY OF THESE WILL WORK
1) The first picture the volcano is erupting and the second one it looks extinct
They both are volcanoes
These will not work
One is black the other is brown
Question 1 answer
47. Question 2 answer
Britons today need not worry about the volcano springing
back to life and the closest active volcanos to the UK is a
toss-up between Mount Vesuvius in Italy and Oraefajokull
on the southeast coast of Iceland, both more than 1,000
miles from London.
48. Question 3 answer
Volcanoes spew hot, dangerous gases, ash, lava, and
rock that are powerfully destructive. ... Volcanic
eruptions can result in additional threats to health,
such as floods, mudslides, power outages, drinking
water contamination, and wildfires.
49. Question 4 answer
Volcanoes that have produced exceedingly voluminous pyroclastic
eruptions and formed large calderas in the past 2 million years
include Yellowstone, Long Valley in eastern California, Toba in
Indonesia, and Taupo in New Zealand.
50. Question 5 answer
With more than 13,000 islands, Indonesia leads the
world with the largest number of active volcanoes.
The areas volcanoes have also produced the most
fatalities.
Fatalities def
an occurrence of death by accident, in war, or
from disease
51. Question 6 answer
How volcanoes are formed and erupt?
A volcano is formed when hot molten rock, ash and gases escape from an opening in the Earth's
surface. The molten rock and ash solidify as they cool, forming the distinctive volcano shape
shown here. As a volcano erupts, it spills lava that flows downslope. Hot ash and gases are thrown
into the air.
https://www.youtube.com/watch?v=K7Oq9_DU1Mc
52. Question 7 answer
Active volcanoes have a recent history of eruptions; they are likely to
erupt again. Dormant volcanoes have not erupted for a very long time
but may erupt at a future time. Extinct volcanoes are not expected to
erupt in the future.
61. Why is Pompeii a tourist attraction?
A world-famous heritage site, one
of Italy's premier tourist attractions
and one of the most important
archaeological sites on Earth for its
Ancient Roman remains and relics:
it's the largest and best preserved
Ancient Roman town.
65. 1. Volcanoes are openings of the Earth’s
surface.
Volcanoes are openings of the Earth’s surface.
When a volcano erupts lava, ash and gas is expelled from it.
The hole at the top is known as the volcanic crater.
66. 2. The word volcano comes from the word
‘vulcan’.
Have you ever wondered where the word volcano comes from?
67. 3. Volcanoes can be active, dormant or extinct.
An active volcano is one that has erupted within the last 10,000 years or it has some
type of activity going on.
This activity could be anything from gases being released or even earthquakes
around it.
A dormant volcano is one that hasn’t erupted in the last 10,000 years, however there
is a chance it will erupt at some point.
An extinct volcano is one that hasn’t erupted in the last 10,000 years and is unlikely
to erupt in the future.
68. 4. The liquid inside the volcano is called
magma.
Volcanoes hold very hot liquid called magma.
Magma is rock that is so hot, it has turned into a liquid.
It glows bright orange and is held in a chamber within the
volcano.
69. 5. Lava is the liquid that is expelled
from the volcano.
Once a volcano erupts, the magma will come out of the
top of the volcano.
After it has left the volcano, it is called lava.
Once the lava has cooled down it will turn into solid
rock.
70.
71. Now for the second last task tell me what you have learnt throughout the whole
lesson
Wright at least 5 bullet points
●
●
●
●
●
●
●
●
●
●
●
●
●
72. If you finished early you can start the next task…
So get your pencil out…
For this task you are going to draw a volcano the proper way are label it
like this:
73.
74. This is the end of our topic
volcanoes I hope you
understood everything.