VOLCANO
THE TYPE OF VOLCANO IS BROAD AND GENTLY SLOPING WITH MILD ERUPTIONS
SHIELD VOLCANO
THE MOST VALUABLE PRECIOUS METAL
PLATINUM
THE TERM THAT DESCRIBES ROCKS THAT BEND DOWNWARD DURING THE FOLDING PROCESS TO FORM A TROUGH LIKE STRUCTURE
SYNCLINE
THE POINT ON THE EARTH’S SURFACE DIRECTLY ABOVE WHERE AN EARTHQUAKE BEGINS
EPICENTER
THE SOIL SUBSTANCE COMPOSED OF DECAYED ORGANISMS’ PARTICLES
HUMUS
VOLCANIC BLOCK
THE MOST REFLECTIVE METAL
SILVER
THE TYPE OF ROCK THAT FORMS WHEN MAGMA SOLIDIFIES
IGNEOUS
TYPE OF SMALLER EARTHQUAKES THAT FOLLOW A LARGE EARTHQUAKE FOR DAYS OR MONTHS
AFTERSHOCKS
THE NUTRIENT THAT PLANTS NEED FOR CELL DIVISION, GROWTH, AND MATURITY
PHOSPHORUS
THE TYPE OF VOLCANIC EJECTA IS LAVA HARDENED TO FORM EITHER A SMOOTH SUFACE OR A ROPY SURFACE
PAHOEHOE
REDDISH-ORANGE METAL THAT IS A GOOD CONDUCTOR OF ELECTRICITY
COPPER
THE LAYER OF SOLID ROCK BELOW THE SOIL
BEDROCK
THE FASTEST TYPE OF EARTHQUAKE WAVE
P WAVE
WATER UNDERNEATH THE EARTH SURFACE
GROUNDWATER
THE NARROW ZONE OF ACTIVE VOLCANOES THAT NEARLY ENCIRCLES THE PACIFIC BASIN
RING OF FIRE
A METAL USED FOR RADIATION SHIELDING, AUTOMOBILE BATTERIES, AND SMALL-ARMS AMMUNITION
LEAD
THE ROCKY SURFACE LAYER OF THE EARTH
CRUST
THE METHOD FOR REDUCING EARTHQUAKE DAMAGE THAT INVOLVES PLACING BUILDINGS ON MOVABLE “STILTS” THAT ABSORB THE EARTHQUAKE ENERGY
BASE-ISOLATED SYSTEM
THE GENERAL TERM FOR ANY NOURISHING SUBSTANCE
NUTRIENT
THE GENERAL TERMS FOR ANY PIECE OF SOLID VOLCANIC EJECTA
PYROCLAST
THE GREEN FORM OF BERYL
EMERALD
THE TYPE OF ROCK THAT FORMS WHEN LAYERS OF SMALL PARTICLES LAID DOWN BY WATER ARE HARDENED INTO ROCK
SEDIMENTARY ROCK
EARTHQUAKE WAVES HELP US STUDY THIS PART OF THE EARTH
EARTH’S INTERIOR
THE IDEA THAT UNDISTURBED SEDIMENTARY STRATA LIE IN THE ORDER THEY WERE LAID DOWN
THE LAW OF SUPERPOSITION