Types
This type of volcano is broad and flat compared to other volcanoes.
What is a Shield volcano?
How resistant a fluid is to moving
What is Viscosity?
The deepest and hottest layer of the Earth, is about 2,500 k wide and can range from 5,000°C to 6,000°C
What is the Inner Core?
A path along the Pacific Ocean characterized by active volcanos and frequent earthquakes.
What is the Ring of Fire?
The most destructive volcano in the history of the United States.
What is Mount St. Helens?
Small cone with steep sides where blobs of lava erupt out, cool & solidify then pile up around the vent
What is a Cinder or Scoria Cone?
Examples of this are oxygen, carbon dioxide, and sulfur dioxide.
What is a Volatile?
What is the Crust?
The volcano that covered the ancient city of Pompeii in Italy.
What is Mount Vesuvius?
There are this many active volcanoes in the world currently.
What is 500?
Commonly in a crater from a previous large eruption, short-lived
What is a Lava Dome?
As the temperature of the magma increases, the _______ increases.
What is Viscosity?
This layer made up of liquid iron, nickel, sulfur, and oxygen, and the movement of these metals creates the Earth’s magnetic field.
What is the Outer Core?
The volcano that erupted in Washington State in 1980
What is Mount St. Helens?
There are this many volcanoes erupting right now.
What is approximately 20?
Large, sunken, oval-shapes areas where a stratovolcano has explosive erupted, drained the magma chamber, and collapsed.
What is a Caldera?
The amount of materials emerging during an eruption
What is Volume?
This layer can range from 1,400°C – 3,000°C, solid toward the lower part because of the pressure, but liquid upper part, contains magma.
What is the Mantle?
75% of volcanoes are located here.
What is the Ring of Fire?
Three-quarters of all volcanic eruptions occur here.
Where is underneath the ocean's surface?
A.k.a. composite volcanoes; usually steep concave sides and commonly symmetrical. Hint: name means layered.
As the amount of ______ increases in magma, viscosity increases.
What is Silica?
High temperature and pressure from this layer of Earth keep magma in its fluid state.
What is the Crust?
The deadliest volcanic eruption which caused what was known as the year without summer.
What is the 1815 explosion of Mount Tambora?
The largest explosion on record which plunged the world into a world wide ice age.
What was Toba?