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VIRTUAL FIELD TRIP
Physical Processes of Earth’s Surface
Loverna Semple
7th Grade Geography
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INSTRUCTION
Welcome Virtual Geographers!
We will be observing the
physical processes of volcanoes
on earth’s surface. We will be
investigating the causes and
effects of volcanoes on earth’s
surface.
Get ready for a real experience
of exploring one of world’s
physical processes of the earth’s
surface.
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Look through the pages on this site.
Where you see ‘Click here’ you will click to
access information on volcanoes.
Where you see ‘Activity’ you will complete
the assignments.
Your first assignment is the vocabulary
activity.
Go through each slide and use the STOPS to
take you where you want to be.
Continue looking through all pages until
you are finished.
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VOCABULARY WORDS
• Volcano
• Lava
• Magma
• Rock
• Seismic activity
• Plate tectonic
• Oceanic plate
• Mountains
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Activity
Define these terms
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What is a volcano?
A volcano is a vent or ‘chimney’ that
connects molten rock(magma) to the
Earth Surface. It includes the
surrounding cone of built-in materials.
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Characteristics
The explosiveness of a volcano
eruption depends on how easy magma
can flow and the amount of gas
trapped in it. When a volcano erupts,
the magma goes up to the earth’s
surface. The magma that goes up to
earth surface is called Lava. Magma is
the molten rock within the earth’s
crust. Rock also come from the
volcanoes in different forms, including
ash and cinder.
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FOUR TYPES OF VOLCANOES
• GEYSERS
1. A geyser is a hot spring’
2. They only send out hot water and
steam.
3. They don’t blast out lava .
4. They are less dangerous then the
volcanoes that blast out lava.
5. Take an electronic field trip, be sure to
investigate the Geysers of Yellowstone
National Park.
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TYPES OF VOLCANOES
• Shield Volcanoes
1. A shield volcano is a large volcano
with shallowly-sloping sides.
2. Shield volcanoes can be so large
that they are sometimes considered
to be a mountain range.
3. The largest is Mauna Loa on the Big
island of Hawaii.
.
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TYPES OF VOLCANOES
• CINDER
1. A cinder cone is surrounded by
cinder.
2. Its crater is filled with water.
3. They are steep cone shaped
mountains like Mt Fuji and Mt.
Vesuvius.
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TYPES OF VOLCANOES
• CALDERAS
1. A caldera is a volcanic explosion
feature formed by the collapse of
land.
2. After a volcanic explosion the top
collapses , water rushes in and the
volcano explodes again.
What are the cause of volcanoes?
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EFFECTS OF VOLCANOES
• A volcanic eruption can knock down
forests and clog rivers with volcanic
Activity
ash.
• Damage can occur from the volcano. Explain 3 effects.
• Materials erupted from volcanoes
can form new land. Overtime, lava
flows can form new, rich soil.
Click on link below for more
information
• Click Here
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Take a virtual trip of the volcanoes.
There are about
500 active
volcanoes on earth.
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Click on the links below to research
the impact and gain more information
on volcanoes.
• Hawaii Volcanoes National Park
• Visit the map of Central and South
America and make notes of the
volcanoes you discovered.
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STANDARD
• 7.3.Spi.11 recognize specific physical processes
that operate on Earth’s Surface (i.e. is
Volcanoes…).
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OBJECTIVES
At the end of the virtual field trip students will be able to :
• Define the term volcano in at least two sentences.
• Describe in a paragraph how volcanoes are formed.
• List at least three types of volcanoes.
• Discuss the effects of volcanoes on Earth’ Surface.
• Evaluate the effects of volcanoes and discuss what can people do
to avoid such disasters.
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REFERENCE
• http://www.tramline.com/tours/sci/volcano/_tourlaunch1.htm
• http://vulcan.wr.usgs.gov/Outreach/AboutVolcanoes/do_volcanoe
s_affect_weather.html
• http://library.thinkquest.org/06aug/00886/index_files/Page561.h
tm
• http://eduscapes.com/sessions/virtual/create.html
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