UNIT 2 EXERCISES

                                                                                                                                                                                                              DEFINITIONS

CRUST-THE  CRUST  IS  THE  SURFACE  LAYER, IT IS A THIN,SOLID  LAYER  MADE  UP  OF A SOLID PART AND A LIQUID PART.

MANTLE- THE MANTLE IS THE SECOND LAYER, THE LAYER  IS ALMOST 85% OF EARTH VOLUME.

CORE-THE CORE HAS A DEPTH  OF  3000  TO  OVER  6000  KM

MAGMA-MAGMA IS MOLTEN ROCK.


  WHAT TEMPERATURE  CAN  BE  REACHED  IN  THE  CORE  OF  THE  EARTH?

THE TEMPERATURE  IN  THE  CORE  REACHES  ABOUT  6500º . 

WHO  WAS  ALFRED   WAGENER?ALFRED WEGENER  IS  THE  SCIENTIST  THAT  OUTLINED  THE  CONTINENTAL  DRIFT  THEORY.

WHAT  IS  PANGAEA?PANGAEA  WAS  SURROUNDED  TRHOW A  SINGLE  OCEAN  CALLED  TETHYS  SEA.

DESCRIBE  THE  EVOLUTION  OF  PANGAEA  AND  EXPLAIN  THE  RELATIONSHIP  BETWEEN  TECTONIC  PLATES  AND  EARTHQUAKE.

THE PANGAEA  BROKE  UP  MAKING  THE  CONTINENTS THIS  CONTINENTS  ARE  NOT  FIXED  BUT  THEY  ARE  MOOVING   BECAUSE   THE  CRUST  IS  DIVIDED  INTO  SEVERAL  PLATES  CALLED  TECTONIC   PLATES  WHEN  THE  TECTONIC  PLATES  COLLIDE   EARTHQUAKES  AND  VOLCAM  ERUPTIONS  ARE  PRDUCED.

HOW  MANY  CONTINENTS HAVE WE  GOT  ON PLANET EARTH?PASTE  A  MAP  OF  THE  WORLD  WITH  THE  NAME  OF  THE  CONTINENTS   
TTHERE ARE 5 CONTINENTS:AMERIA,  ASIA  ,AFRICA,  ANTARTIDA  AND  EUROPE

NAME  MOST  IMPORTANT  OCEANS  IN  OF  THE  WORLD.


INDIAN OCEAN,ATLANTIC  OCEAN,ANTARTIC  OCEAN AND  THE  PACIFIC  OCEAN.

THE RELIEF IS THE RESULT OF THE INTERNAL  FORCES  OF THE EARTH AND EXTERNAL AGENTS.WRITE AN EXAMPLE OF THE ACTION OF INTERNAL FORCES.NAME THE EXTERNAL AGENTS THAT CAUSE THE EROSION AND MODELING OF EARTHS RELIEF.

THE INTERNAL  FORCES  ARE  THE  RESPONSABLE  OF  THE  ORIGIN  AND ELEVATION.
THE EXTERNAL AGENTS THAT CAUSE THE  EROSION AND MODELING  OF  EARTHS  RELIEF  ARE: WIND RAIN AND TEMPERATURES.

WRITE DEFINITIONS

MOUNTAIN:MOUNTAIS ARE LAND MASES THAT SURROUNDS HIGH ABOVE  AREA ARROUND  

PLAIN:PLAINS  ARE  LARGE  FLAT TRACKS OF LAND

VALLE:THERE  ARE  SUNKEN  LAND   AND  ARE  SORROUNDED  BY  MOUNTAINS  OR  RIDGES

HILL:

RIVER:NATURAL STREAM  OF  WATER  THAT  FLOWS  IN  A  CHANEL

DELTA: LOW-LYING  PLAIN  COMPOSED  OF  STREAM-BRONE  DEPOSITED  BY A RIVER AS ITS MOUTH 

ESTUARY:A FLOW  OF  WATER   IN  A CHANEL  LIKE  A SAMALL RIVER 

GLACIER: IS  A  LARGE  MAS  OF  ICE   THAT FORMS ON  LAND.

GROWNDWATER:WATER  THAT  OCURRES  BELOW  THE  GROWND

LAKE:STENDING  WATER  THAT  OCUPY  AN  INLAND  BASIN