What's Shakin'
Poppin' Hot Rocks
Earthy Terms
Blow It Up!
Gettin' Hotter Every Day
100
any trembling or shaking of the earth's crust
What is an earthquake
100
the strength of an earthquake
What is magnitude
100
scientists who study the structure of the earth
What are geologists
100
a volcano that has erupted recently
What is active
100
Magma that has reached the earth's surface
What is lava
200
monstrous waves caused by earthquakes
What is a tsunamis
200
occurs when natural acids slowly eat into a rock, breaking it apart
What is chemical weathering
200
the process by which new soil is formed as rocks crumble and break into smaller pieces
What is weathering
200
a volcano that has been active at some time in recorded history, but has not had a recent eruption
What is dormant
200
a depression found at the top of a volcano
What is a crater
300
the point underground where an earthquake begins
What is a focus point
300
pressure and "this" increases the deeper you descend into the earth
What is temperature
300
the boundary between the earth's crust and its mantle
What is Moho (or) Mohorovicic discontinuity
300
a volcano that has not erupted in recorded history
What is extinct
300
Running along the edge of the Pacific Ocean, this area is named for its many volcanoes
What is the Ring of Fire
400
a break that appears at the boundary between two moving masses of rock
What is a fault
400
this allows molten rock and hot gases to escape from within the earth
What is a volcano
400
underwater mountain ranges
What are mid-oceanic ridges
400
a volcano that produces lava fountains or fire curtains
What is Hawaiian
400
holes or cracks which serve as escape vents for underground gases
What are fumaroles
500
the place at ground level that is directly above the focus of an earthquake
What is an epicenter
500
this is created when trapped gases blast through the earth's surface
What is a vent
500
study of earthquakes
What is seismology
500
a volcano characterized by hot clouds of gas and dust that it expels
What is Plinian
500
smaller fragments of molten rock that solidify almost instantly
What is tephra
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