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Volcano Under the City
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Viewing Ideas
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Before Watching
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Have students list and then share what they know about
volcanoes. Where are volcanoes found? How are they formed? Do
all volcanoes give off the same type of material?
(Volcanoes emit lava, tephra or rock fragments, and gases;
these differ according to volcano type.)
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Organize students into three groups. As students watch the
program, have each group take notes on one of the following
areas: what scientists are trying to measure and the instruments
they used, the challenges and dangers researchers faced, and
past volcanic eruptions and the damage caused by each.
After Watching
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Have students share their notes. Make a chart on the board that
includes what scientists measured, what kind of technology they
used, and what they learned from their tests.
(Scientists used seismographs to detect earthquake
distribution, employed satellite imaging to measure changes in
land deformation, took gas measurements to determine gas
content and levels, and obtained lava samples to better
understand the dynamics of the volcano's magma.)
Include in the discussion the challenges and dangers researchers
faced, and the nature of earlier Nyiragongo eruptions.
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Ask students how they would feel living near Nyiragongo. Why
would they stay? Why would they leave? What other forces of
nature make some areas unsafe? Have students compare the risk of
living in an area where natural disasters might occur and cause
devastation and death versus taking risks such as smoking or
speeding in a car.
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