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SO YOU THINK YOU CAN DANCE PART TWO! TOTALLY CLASS!

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Presentation on theme: "SO YOU THINK YOU CAN DANCE PART TWO! TOTALLY CLASS!"— Presentation transcript:

1 SO YOU THINK YOU CAN DANCE PART TWO! TOTALLY CLASS!

2 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

3 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.

4 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)

5 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

6 CONVERGENT BOUNDARIES DANCE STEP= HANDS COLLIDE TOGETHER/CRASH NOTES= A CONVERGENT BOUNDARY IS WHEN TWO TECTONIC PLATES COLLIDE OR COME TOGETHER CAN FORM MOUNTAINS

7 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

8 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

9 PLATE MOTION-COMPRESSION STRESS DANCE STEP=SQUEEZE NOTES-COMPRESSION STRESS=SQUEEZING=CONVERGENT BOUNDARY=REVERSE FAULTS

10 PLATE MOTION-TENSION STRESS DANCE STEP=STRETCHING NOTES= TENSION STRESS=STRETCHING= DIVERGENT BOUNDARY=NORMAL FAULTS

11 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

12 SUBDUCTION/OCEANIC CRUST DANCE STEP=SINKING MOTION/DIVING MOTION NOTES=SUBDUCTION IS WHEN THE DENSER, OCEANIC CRUST SINKS BENEATH

13 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

14 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

15 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

16 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

17 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)


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