Font size
WorksheetsPRE ASSESSMENT VOLCANOES
Total questions: 15
Worksheet time: 7mins
Which of the following is an active volcano in the Philippines?
Apo in Davao
Bud Datu in Sulu
Isarog in Camarines Sur
Kanlaon in Negros Oriental
Which characteristic of magma mainly determines its explosiveness?
color
temparature
silica content
amount
It is a funnel-shaped opening at the top of a volcano.
summit
slope
caldera
crater
A thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings because ash ________.
is solid
cannot be blown by winds
becomes heavier as it cools
consists of tiny fragments of rocks that become heavy when they pile up.
Lava with less silica content has high viscosity
true
false
sometimes
Which of the following characteristics of a volcano depends on its magma emission?
age
size
shape
location
The energy generated by volcanoes.
(a)
Lava with a low amount of gas has high viscosity.
true
false
maybe
sometimes
Why are volcanoes located in the Pacific Ring of Fire?
earthquake epicenters are also located there
the presence of subductions zones
magma is hotter in these areas
all hotspots are located in the Ring of Fire
A -------------- volcano is one that isn’t currently active or erupting, but geologists think that it’s still capable of erupting.
active
dormant
extinct
inactive
An example of this volcano type is Mayon Volcano.
shield
cinder cone
composite
none of the above
Which Volcano erupted in 1991 which is the first time in 600 years?
Mt Mayon
Mt. Kanlaon
Mt Pinatubo
Taal Volcano
When was the most recent activity of Taal Volcano?
January 2020
January 2021
December 2020
December 2021
Volcano Observatories in the Philippines are located in places with active volcanoes.
true
false
maybe
sometimes
An eruption of a volcano increases the temperature of the atmosphere.
true
false
maybe
it depends on the climate
