So you think you can dance part two
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SO YOU THINK YOU CAN DANCE PART TWO!. TOTALLY CLASS!. ALFRED WEGENER. DANCE STEP=THINKING MOTION, POINT TO HEAD SAY “I WILL CALL IT…CONTINENTAL DRIFT”

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Alfred wegener
ALFRED WEGENER

  • DANCE STEP=THINKING MOTION, POINT TO HEAD

  • SAY “I WILL CALL IT…CONTINENTAL DRIFT”

  • NOTES=HE CAME UP WITH THE THEORY OF CONTINENTAL DRIFT BASED ON EVIDENCE COLLECTED FROM SIMILAR FOSSILS, ROCKS, CLIMATE, AND THE CONTINENTS SEEM TO FIT TOGETHER


Continental drift
CONTINENTAL DRIFT

  • DANCE STEP= HUG MOTION, THEN SEPARATE

  • NOTES= CONTINENTAL DRIFT STATED THAT THE CONTINENTS WERE ONCE TOGETHER INA SINGLE LANDMASS CALLED PANGAEA, THEN BROKE APART, AND HAVE SINCE DRIFTED TO THEIR CURRENT LOCATIONS.


Plates
PLATES

  • DANCE STEP= MOVE AROUND FIRST..THEN, FLOATING MOTION IN AIR

  • NOTES= TECTONIC PLATES ARE PIECES OF THE LITHOSPHERE THAT MOVE AROUND AND FLOAT ON TOP OF THE ASTHENOSPHERE

  • LIKE A CRACKED EGGSHELL(PIECES SEPARATED BY JAGGED CRACKS)


Plate boundary
PLATE BOUNDARY

  • DANCE STEP= DRAW TWO JAGGED PLATES WITH HANDS AND THEN HAVE THEM TOUCH

  • NOTES= A PLATE BOUNDARY IS A PLACE WHERE TECTONIC PLATES TOUCH


Convergent boundaries
CONVERGENT BOUNDARIES

  • DANCE STEP= HANDS COLLIDE TOGETHER/CRASH

  • NOTES= A CONVERGENT BOUNDARY IS WHEN TWO TECTONIC PLATES COLLIDE OR COME TOGETHER

  • CAN FORM MOUNTAINS


Divergent boundaries
DIVERGENT BOUNDARIES

  • DANCE STEP= MOVE AWAY

  • NOTES= A DIVERGENT BOUNDARY IS WHEN TWO TECTONIC PLATES MOVE AWAY OR SEPARATE FROM EACH OTHER

  • MID-OCEAN RIDGE EXAMPLE/VOLCANIC ACTIVITY/SEA-FLOOR SPREADING


Transform boundary
TRANSFORM BOUNDARY

  • DANCE STEP= SLIDE OR HAVE HANDS SLIP PAST EACH OTHER/RUB AGAINST EACH OTHER AS WELL

  • NOTES= A TRANSFORM BOUNDARY IS WHEN TWO TECTONIC PLATES SLIDE OR SLIP PAST EACH OTHER.

  • EARTHQUAKES HAPPEN HERE/SAN ANDREAS FAULT IN CALIFORNIA/RIFT VALLEY FORMS


Plate motion compression stress
PLATE MOTION-COMPRESSION STRESS

  • DANCE STEP=SQUEEZE

  • NOTES-COMPRESSION STRESS=SQUEEZING=CONVERGENT BOUNDARY=REVERSE FAULTS


Plate motion tension stress
PLATE MOTION-TENSION STRESS

  • DANCE STEP=STRETCHING

  • NOTES= TENSION STRESS=STRETCHING= DIVERGENT BOUNDARY=NORMAL FAULTS


Plate motion shearing stress
PLATE MOTION- SHEARING STRESS

  • DANCE STEP=SLIDING BY/SLIPPING APART/BREAKING OFF AS GOES BY/OPPOSITE DIRECTIONS

  • NOTES=A STRESS THAT PUSHES A MASS OF ROCK IN TWO OPPOSITE DIRECTIONS IS CALLED SHEARING. CAN CAUSE A ROCK TO BREAK AND SLIP APART OR CHANGE ITS SHAPE

  • SHEARING=TRANSFORM BOUNDARY=STRIKE-SLIP FAULT


Subduction oceanic crust
SUBDUCTION/OCEANIC CRUST

  • DANCE STEP=SINKING MOTION/DIVING MOTION

  • NOTES=SUBDUCTION IS WHEN THE DENSER, OCEANIC CRUST SINKS BENEATH


Theory of plate tectonics
THEORY OF PLATE TECTONICS

  • DANCE STEP= ROBOT/SLOW MOTION

  • NOTES= THE THEORY OF PLATE TECTONICS STATES THAT PIECES OF EARTH’S LITHOSPHERE ARE IN CONSTANT, SLOW MOTION, DRIVEN BY CONVECTION CURRENTS IN THE MANTLE


Mid ocean ridge
MID-OCEAN RIDGE

  • DANCE STEP= FORM MOUNTAINS, THEN HOLD NOSE AS YOU GO UNDERWATER

  • NOTES= THE MID-OCEAN RIDGE IS THE LONGEST UNDERWATER MOUNTAIN CHAIN IN THE WORLD AND IS WHERE NEW CRUST IS LOCATED DURING SEA-FLOOR SPREADING


Continental crust
CONTINENTAL CRUST

  • DANCE STEP=MAKE MOUNTAINS AND DRAW AN OUTLINE OF A HOUSE IN THE AIR

  • NOTES=THE CONTINENTAL CRUST IS THICKER, MADE OF GRANITE, MOUNTAINS ARE HERE AND IT THE CRUST WE LIVE ON


Younger and older crust
YOUNGER AND OLDER CRUST

  • DANCE STEP=NEW CRUST=CENTER/CLOSER

  • OLDER CRUST= PUSH TO EDGES

  • NOTES=YOUNGER CRUST IS FOUND CLOSE TO THE MID-OCEAN RIDGE AND OLDER CRUST GETS PUSHED FAR AWAY FROM THE MID-OCEAN RIDGE TO THE EDGES


Sea floor spreading
SEA-FLOOR SPREADING

  • DANCE STEP=SAY “H,H” THEN PULL AWAY MOTION

  • NOTES-HARRY HESS, AMERICAN GEOLOGIST IDENTIFIED MID-OCEAN RIDGE AND SEA-FLOOR SPREADING, SEA-FLOOR MOVES APART(DIVERGENT BOUNDARY)