Science "A" Level Project
Published on Nov 18, 2015
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PRESENTATION OUTLINE
SCIENCE "A" LEVEL PROJECT
BY: JESSICA LEE
THE WORLD TODAY
PANGEA
THIS HAPPENED ABOUT 300 MILLION YEARS AGO
EVIDENCE 1
LAND FEATURES
WEGENER PIECED TOGETHER MAPS OF AFRICA AND SOUTH AMERICA
HE NOTICED THAT MOUNTAIN RANGES ON THE CONTINENTS LINE UP.
EVIDENCE 2
FOSSILS
"GLOSSOPTERIS" WAS A FERNLIKE PLANT THAT LIVED 250MILION YEARS AGO.
FOUND IN AFRICA, SOUTH AMERICA, AUSTRALIA, INDIA, AND ANTARCTICA
EVIDENCE 3
CLIMATE
AS A CONTINENT MOVES TOWARD THE POLE, ITS CLIMATE GETS COLDER
AS A CONTINENT MOVES TOWARDS THE EQUATOR, ITS CLIMATE GETS WARMER
SEA FLOOR SPREADING
IT ADDS MORE CRUST TO THE OCEAN FLOOR. AND AT THE SAME TIME...
OLDER STRIPS OF ROCK MOVE OUTWARD FROM EITHER SIDE OF THE RIDGE
SUBDUCTION
THE PROCESS BY WHICH THE OCEAN FLOOR SINKS BENEATH A
DEEP OCEAN TRENCH, THE BACK INTO THE MANTLE AGAIN.
MID-OCEAN RIDGES
FORM FROM LONG CHAINS OF MOUNTAINS
THAT RISE UP FROM THE OCEAN FLOOR
DEEP OCEAN TRENCHES
AT A DEEP-OCEAN TRENCHES,
THE OCEANIC CRUST BENDS DOWNWARD.
