UNIT 1: THE EARTH (INTRODUCTION)

THE EARTH
WE REPRESENT THE EARTH WITH GLOBES AND MAPS

GLOBES ARE ROUND

MAPS ARE FLAT

IN GLOBES AND MAPS WE CAN SEE CONTINENTS, OCEANS, SEAS, ETC

TYPES OF MAPS:
MAPS CAN REPRESENT

 THE EARTH

A CONTINENT

A COUNTRY

A CITY

THERE ARE THEMATIC MAPS

WEATHER MAPS ARE THEMATIC MAPS

POLES, EQUATOR, HEMISPHERES, AXIS.

THE NORTH POLE IS AT THE TOP OF THE EARTH

THE SOUTH POLE IS AT THE BOTTOM

THE EQUATOR DIVIDES THE EARTH IN TWO PARTS: THE NORTHERN HEMISPHERE (NORTH OF THE EQUATOR)
 THE SOUTHERN HEMISPHERE (SOUTH OF THE EQUATOR)

AXIS OF THE EARTH: THE AXIS GOES FROM THE NORTH POLE TO THE SOUTH POLE.

THE EARTH ROTATES ON ITS AXIS 

(ROTATION MOVEMENT). 

ROTATION MOVEMENT PRODUCES DAY AND NIGHT.

LOCATION

THE FOUR CARDINAL POINTS ARE: NORTH (N), SOUTH (S), EAST (E) AND WEST (W).
THESE 4 IMAGINARY POINTS HELP US KNOW WHERE WE ARE.

COMPASS AND GPS
COMPASS AND GPS HELP US TO LOCATE A PLACE.

THE THREE SPHERES OF THE EARTH:
 LITHOSPHERE (SOLID)
 ATMOSPHERE (GAS)
 and HYDROSPHERE (LIQUID)