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earth science ch 10
earth science ch 10
22
Science
8th Grade
02/26/2012

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Term
ASTHENOSPHERE
Definition
PLASTICLIKE LAYER OF EARTH'S SERVICE BELOW THE LITOSPHERE
Term
CONVECTION CURRENT
Definition
CYCLE OF HEATING, RISING, COOLING AND SINKINS
Term
PLATE TECTONICS
Definition
THEORY THAT STATES THAT EARTH'S CRUST AND UPPER MANTLE ARE BROKEN INTO SECTIONS, WHICH MOVE AROUND ON A SPECIAL LAYER OF THE MANTLE
Term
SUBDUCTION ZONE
Definition
AREA WHERE AN OCEANIC PLATE GOES DOWN INTO THE MANTLE
Term
TRANSFORM BOUNDARY
Definition
PLATE BOUNDARY THAT OCCURS WHEN TWO PLATES SLIDE PAST ONE ANOTHER- SLIDE!
Term
CONVERGENT BOUNDARY
Definition
PLACE WHERE TWO PLATES MOVE TOGETHER-COME TOGETHER!
Term
LITHOSPHERE
Definition
RIGID LAYER OF EARTHS SURFACE MADE UP OF THE CRUST AND A PART OF THE UPPER MANTLE
Term
MAGNETOMETER
Definition
SENSING DEVICE THAT DETECTS MAGNETIC FIELDS, HELPING TO CONFIM SEAFLOOR SPREADING- DEVICE THAT SENSES SEAFLOOR SPREADING!
Term
PANGEA
Definition
ONE LARGE LANDMASS HYPOTHESIZED TO HAVE BROKEN APART ABOUT 200 MILLION YEARS AGO
Term
CONTINENTAL DRIFT
Definition
HYPOTHESIS THAT CONTINENTS HAVE MOVED SLOWLY TO THEIR CURRENT LOCATIONS
Term
DIVERGENT BOUNDARY
Definition
BOUNDARY BETWEEN TWO PLATES THAT ARE MOVING APART- PLATES MOVING APART!
Term
PLATE
Definition
SECTION OF EARTHS CRUST AND UPPER MANTLE
Term
MANTLE
Definition
LARGEST LAYER OF EARTHS SURFACE, COMPOSED MOSTLY OF SILICON, OXYGEN & MANGESIUM & IRON
Term
CRUST
Definition
OUTERMOST LAYER OF EARTHS SURFACE
Term
STRIKE SLIP FAULT
Definition
WHERE ROCKS ON OPPOSITE SIDES OF A FAULT MOVE IN OPPOSITE DIRECTIONS OR IN THE SAME DIRECTION AT DIFFERENT RATES
Term
THE CONTINENTAL DRIFT HYPOTHESIS
***EVIDENCE THAT SUPPORTS THIS HYPOTHESIS
(ALFRED WEGENER)
Definition
1) THE PUZZLE LIKE FIT OF THE CONTINENTS
2) SIMILAR ROCK STRUCTURES
3) CLIMATE EVIDENCE
Term
SEAFLOOR SPREADING HYPOTHESIS
*** EVIDENCE THAT SUPPORTS THIS THEORY
( HARRY HESS)
Definition
1) MAGNETIC EVIDENCE IN ROCKS
2) THE AGES OF ROCKS ON THE OCEAN FLOOR
Term
WHAT ARE SOME FEATURES CAUSED BY PLATE TECTRONICS?
Definition
*FAULTS AND RIFT VALLEYS
**MOUNTAINS & VOLCANOES
***STRIKE SLIP FAULTS
Term
SURFACE WAVES
Definition
SEISMIC WAVES THAT MOVE ROCK PARTICLES UP AND DOWN IN A BACKWARD ROLLING MOTION AND SIDE TO SIDE IN A SWAYING MOTION
Term
SEISMOGRAPH
Definition
INSTRUMENT USED TO REGISTER EARTHQUAKE WAVES AND RECORD THE TIME THAT EACH ARRIVES
Term
MAGNITUDE
Definition
MEASURE OF THE ENERGY RELEASED DURING AN EARTHQUAKE
Term
TSUNAMI
Definition
A BIG WAVE THAT COMES AFTER AN EARTHQUAKE
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