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25 Cards in this Set

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Small pieces of hardened lava
ash
as
Melted; being in liquid state usually produced by a high degree of heat such as liquified iron
molten
mo
Magma that reaches the earth's surface
lava
lav
Tall and narrow volcanoes with steep slopes made mostly of ash
cinder cone volcanoes
cin vol
Wide volcanoes that have fairly steep slopes made of lava and ash
composite volcanoes
com vol
Broad volcanos with gentle slopes made mostly of lava
shield volcanos
sh vol
The area along the boundaries around the Pacific Plate where many volcanoes are located
Ring of Fire
Ri of Fi
The Earth's highest mountain range that was formed as the Indian plate pushed into the Eurasian plate
Himalayas
Him
Openings of a volcano in the earth's crust
vents
ve
Rigid block of crust and upper-mantle rock
plate
pl
Hot, soft rock from the lower mantle
magma
mag
Opening in the crust through which lava flows
volcano
vo
Shaking of ground from energy release in the crust
earthquake
ea
Place where pieces of crust move
fault
fa
Center and hottest layer of Earth
core
co
Middle layer of Earth
mantle
man
Outer, very thin layer of Earth
crust
cr
Earthquake center
focus
fo
relative strengths of earthquakes
magnitudes
magn
Narrow zones between plates
plate boundaries
pl bo
long chain of mountains under the ocean formed by magma bubbling up through ocean plates that are pulling apart
mid-ocean ridges
mi oc ri
Earth's longest mountain range formed where the North American and Eurasian plates are pulling apart under the ocean
Mid-Atlantic Ridge
Mi At Ri
Waves of energy caused by the sudden breaking of rock within the earth during an earthquake
seismic waves
se wa
Instrument that measures and records seismic waves
seismograph
segr
Beginning with the outermost layer, Earth's layers are the
crust, mantle, and core
cr, ma, and co