THE PLANET EARTH

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THE UNIVERSE

made up of STARS, CELESTIAL BODIES (galaxies), INTERSTELLAR MATTER (dust & gas) and the SPACE between the objects.

The galaxies, celestial bodies tha contains STARS and PLANETARY SYSTEMS. Our galaxiy is called THE MILKY WAY.

The planetary systems consist of a central star and celestial bodies that orbit around it. Our planetary system is THE SOLAR SYSTEM

THE SOLAR SYSTEM consists in SUN + INNER PLANETS (Mercury, Venus, EARTH and Mars) + ASTEROID BELT + OUTER PLANETS (Jupiter, Saturn, Uranus and Neptun) + comets + SATELLITES (Moon) + meteorits + DWARF PLANETS (Pluto)

THE EARTH. There is LIFE on Earth because the TEMPERATURE, the ATMOSPHERE and abundance of LIQUID WATER.

IT IS A GEOID SHAPE, it is flatted at the poles.

THE EARTH'S MOVEMENTS

ROTATION

The Earth spins on its imaginary axis.

Consecuences THERE IS DAY AND NIGHT EXISTENCE OF HOURS, 24 HOURS

ORBIT

The Earth orbits around the Sun.

Consecuences THERE ARE SEASONS IT TAKES 365 DAYS AND 6 HOUR (each 4 years we've got a leap year)

THE EQUINOXES THE SOLSTICES TROPICA ZONES TEMPERATE ZONES COLD ZONES

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GEOGRAPHICAL COORDINATES

use to locate a place on a map. We need the latitude and the longitud.

they are imaginary lines:

PARALLELS (lines of latitude)

Imaginary lines that circle the Earth from west to east.

The parallel 0º, THE EQUATOR

Other important parallels: TROPIC OF CANCER AND TROPIC OF CAPRICORN ARTIC AND ANTARTIC CIRCLES

MERIDIANS (lines of longitude)

Imaginary lines that run from one pole to the other

The meridian 0º, THE GREENWICH MERIDIAN or PRIME MERIDIAN

LATITUDE Is THE DISTINCe FROM ANY POINT ON THE EARTH TO THE EQUATOR. It can be North or South

LONGITUDE IS THE DISTANCE FROM ANY POINT ON THE EARTH TO THE GREENWICH MERIDIAN. It caNn be East or West.