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WorksheetsVOLCANOES
Total questions: 10
Worksheet time: 10mins
TRUE OR FALSE: The higher the temperature of magma is, the higher is its viscosity.
TRUE
FALSE
TRUE OR FALSE: Viscosity is the property of the material’s resistance to flow.
TRUE
FALSE
TRUE OR FALSE: The more viscous and thicker the material is, the less its resistance to flow.
TRUE
FALSE
TRUE OR FALSE: As lava flows, it cools and begin to harden thus, its ability to flow increases and eventually it stops.
TRUE
FALSE
TRUE OR FALSE: Lava with low amount of gas and high silica content is very viscous and does not flow out as it rises.
TRUE
FALSE
Which of the following characteristics of a volcano depends on its magma emission?
age
shape
size
location
Which of the following is TRUE to volcanoes with high amounts of dissolved gas and high amounts of silica?
They are extremely explosive.
They are sometimes explosive and sometimes more gentle.
They are more gentle with flowing lava.
They are unpredictable, with any kind of eruption.
It is a periodic weak to violent eruption characterized by fountain lava.
Strombolian
Phreatomagmatic
Plinian
Vulcanian
It is a violet eruption due to the contact between water and magma.
Strombolian
Phreatomagmatic
Phreatic
Plinian
It is characterized by tall eruption columns that reach up to 20 km high with pyroclastic flow and ash fall tephra.
Plinian
Phreatic
Strombolian
Vulcanian
