Layers of the Earth
What is the outermost layer of the earth? (It is thinner than other layers, and it is rocky and brittle.)
Which type of volcano is in the process of erupting or shows signs of erupting in the near future?
a. active
b. dormant
c. extinct
a. active
What do you call the hot molten rock when it comes OUT of the volcano?
lava
What is the name of the volcano the erupted in 79 AD in Italy, destroying the cities of Herculaneum and Pompeii?
Mt. Vesuvius
What is it called when two of Earth's plats move toward each other and collide?
Convergent
Which is thicker: continental crust or oceanic crust?
Continental Crust
Which kind of volcano is formed from ash and rocks? They also have a narrow base and sides.
a. cinder cone
b. composite
c. shield
d. dome
a. cinder cone
The hole at the top of a volcano is called the:
a. mouth
b. vent
c. conduit
d. crust
b. vent
Which volcano erupted in the United States in the 1980's?
Mt. St. Helens
What is it called when two of Earth's plates move away from each other and new crust is created in between them?
Divergent
Which layer is the inside (inner-most) layer of the earth?
The core
Which type of volcano has not erupted in recorded history and probably never will again?
a. active
b. dormant
c. extinct
c. extinct
The large pool of hot molten rock below crust is called the __________ chamber.
magma
What is the name of the volcano that erupted in 1883 and destroyed the volcano and most of the island it sat on?
Krakatoa
Transform
What do we call the middle layer of the earth? (It is also the thickest layer).
The Mantle
Which type of volcano is formed by explosive eruptions followed by quieter outpourings of lava? They are also wide AND steep.
composite
Which layer of the earth does a volcano sit upon?
crust
What is the name of the famous geyser in Yellowstone National Park?
Old Faithful
What is the name of the deepest undersea trench?
Mariana Trench
Which layer of the Earth has a temperature hotter than the surface of the sun?
The core
Which type of volcano is built up from lava spreading out so it is wide, but not steep?
conduit
What is the name of the "child of Krakatoa"?
Anuk Krakatoa
Name one way that scientists are able to predict volcanic eruptions.
a. a bulge in the slope of the mountain
b. collecting gases
c. record earthquakes
d. use satellite images to record heat change