Patterns in the distribution of volcanoes
Relations between magma composition and type of volcano formed
Volcanic hazards associated with various kinds of flows
The effect of ash, lava, pyroclastic flows, and lahars on the environment and people
How to stay safe in the presence of an active volcano
100
Chain of volcanoes around the Pacific Ocean.
What is the Ring of Fire.
100
This kind of magma forms shield volcanoes.
What is low-silica magma.
100
A fluid's resistance to flow or internal friction.
What is viscosity.
100
A term for pieces of volcanic rock and lava that are ejected into the air.
What is tephra.
100
Do this if you are indoors.
What is close all windows and doors.
200
A fixed source of abundant rising magma.
What is a hotspot.
200
Magma is a mixture of this.
What is liquid, melted rock, and dissolved gases.
200
Wet mixture of water, mud, and volcanic fragments.
What is a lahar.
200
Tephra greater than 64mm.
What is volcanic bombs.
200
Avoid these if a volcano erupts.
What is rivers and low-lying areas.
300
A small % of volcanoes occur at this part of a plate.
What is the interior of a plate.
300
This kind of magma forms steeper volcanoes.
What is silica-rich magma.
300
High density mixtures of hot ash and rock fragments with hot gases.
What is pyroclastic flows.
300
Tephra between 2 and 64mm.
What is lapili.
300
Wear this to protect yourself from ash.
What is long sleeved shirts, long pants, and goggles.
400
Nearly 4/5 of volcanoes on land form where this happens.
What is where one plate slides beneath another.
400
The most abundant chemical elements in magma.
What is silica and oxygen.
400
On steep slopes basalt flows can move at this speed.
What is 10 km/h.
400
Tephra less than 2mm.
What is ash.
400
Listen to this for the latest emergency information.
What is a battery-operated radio or television.
500
Where volcanoes in the African rift valley form.
What is where two parts of the continent are moving apart.
500
This forms when a large volume of magma is erupted and the overlying rocks collapse.
What is a caldera.
500
Pyroclastic flows move at this speed.
What is 350 km/h.
500
A scale of eruption magnitude.
What is Volcanic Explosivity Index.
500
Hazards that can accompany volcanoes.
What is mudflows and flash floods,landslides and rockfalls, earthquakes,ashfall and acid rain, and tsunamis.
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