Volcanic Stuff
When magma inside a volcano hardens and the outside wears away it is called a >>>>>
What is a volcanic neck.
Lava with ash, cinders, and bombs is known as...?
What is pyroclastic flow.
Before lava reaches the surface it is called?
What is magma.
This planet has only shield volcanoes and lava flows similar to Earth's.
What is Venus
The thicker the magma the more _______ it has.
What is silica
The reason why liquid magma flows upward through cracks.
What is heat and pressure
T or F Shield volcanoes usually have quiet eruptions.
What is T.
A huge hole left by a collapsed volcano is called?
What is a caldera.
The two other bodies in the solar system where volcanic eruptions have been observed are...? (Hint: They are not planets)
What are Io and Triton.
The name of the volcano on Mars. Hint: The biggest volcano anywhere.
What is Olympus Mons.
The long tube which connects to the magma chamber.
What is the pipe.
Tall pointy shaped mountain in which layers of lava alternate with layers of ash.
What is a composite volcano.
Rock that forms when magma cools inside the crust.
What is a batholith.
Triton's and Neptune's eruptions are not lava but.....____________.
What is gas.
Name the three stages of a volcano.
What are active, dormant, and extinct.
The openings at the top or side of a volcano are known as....
What is vents.
The part of the volcano that is underground and contains the magma.
What is magma chamber
When geologists detect small earthquakes near a volcano what can they infer?
What is it is going to erupt.
The smooth surfaces seen on the Earth's moon are from?
What are lava flows.
The largest volcanic belt is known as..?
What is The Ring of Fire.
Thin lava has less of this ingredient.
What is silica
The most dangerous hazard from a volcano isn't its lava but its.....
smoke/gases
This volcano has ash, cinders, and bombs located on the crater.
What is a cinder cone volcano.
T or F Earth's moon's volcanoes are still active.
F
When one plate sinks under another this is called _________________.
What is subduction.