What is the flat, leveled landform called. (Hint: made when layers of lava pile up on each other)
Lava plateau.
100
A volcano has quiet eruptions and is flat, wide, and sloping. What type of volcano is it?
Shield volcano.
100
What does magma go through to reach the surface?
YAY! Double the points if right, give the other team DOUBLE POINTS if wrong. Answer is the PIPE.
100
Where do most volcanoes form?
Along plate boundaries.
200
What determines whether an eruption is explosive or quiet?
The silica content of the magma.
200
What is the intrusion called when magma squeezes between HORIZONTAL layers of rock?
YAY! Double the points if right, subtract original amount of points if wrong. Answer is a sill.
200
How many types of volcanoes are there? Name them.
3. They are composite, cinder cone, and shield volcanoes.
200
Where does magma explode out of the volcano?
The vent.
200
If a volcano is currently erupting, what stage is the volcano in?
Active.
300
What is the explosive eruption called if it hurls out hot gases, cinders, ash, and bombs?
A pyroclastic flow.
300
How does a volcanic neck form?
A volcanic neck forms when magma hardens in the volcano's pipe. Erosion wears away the outer part of the volcano, leaving the hardened magma.
300
A volcano is EXPLOSIVE but alternates with quiet eruptions, TALL, and STEEP. What type of volcano is it?
YAY! MULTIPLY your points by 2 if right, DIVIDE your points by 2 if wrong. Answer is Composite Volcano.
300
What is the "hole" at the top of the volcano called.
A crater.
300
If a volcano does not erupt anymore, (or at least thought not to erupt) what stage is it in?
Extinct.
400
What are the projectiles an explosive eruption can hurl out? List them in order of LARGEST to SMALLEST.
Bombs, cinders, and ash
400
What is a caldera usually filled with?
Water with a small cinder cone.
400
A volcano has explosive eruptions. What type of volcano is it?
A cinder cone volcano.
400
Where is all the magma stored under a volcano?
The magma chamber.
400
What can wet ash do to roofs of houses?
YAY! MULTIPLY your points by 2 if right, DIVIDE your points by 2 if wrong. Answer is WET ASH CAN COLLAPSE ROOFS OF HOUSES.
500
What are the two types of lava produced by a quiet eruption called?
YAY! Double the points of this question if correct. Subtract original amount of points is wrong. Answer is Pahoehoe(thin and runny) and Aa(slow-moving).
500
What are dikes and sills an example of?
An igneous intrusion.
500
Is a composite volcano TALL AND STEEP, or WIDE AND SLOPING? (Composite volcanoes alternate between quiet eruptions and explosive eruptions)
TALL AND STEEP.
500
Do volcanoes have side vents?
Yes.
500
A volcano has not erupted for a while, although it has shown signs of erupting in the future. What stage is the volcano in?