Planet Earth

Planet Earth

1. The solar system

2. The planet earth facts

   • position by size
     • the fifth
   • surface
     • 510 million square km
   • distance in km from the Sun
     • 150 million km away
   • position by distance from the sun
     • the third

3. the moon

   • the man arrived in the moon on 24th of july 1969
   • the first man in the moon was called Neil Amstrom
   • His first word in the moon was¨That's a small step for the man ; one giant leap for mandkind ¨
   • The mission was called Apolo 11

4. The Earth structure

   • The Hydrosphere
     • All the Earth watter
   • The Atmosphere
     • A layer of gases
   • The Biosphere
     • The Earth ecological system
   • The Lithosphere
     • The Earth solid surface

5. The Earth rotation

   • The rotation of the Earth spins continully on its own axis .It takes 24h ,1 day
   • The rotation of the Earth cases the alteration of day and night because the movement and the circule shape of the Earth causes this .

6. The Earth revolution

   • The revolution of the Earth is the move around the Sun . It takes 365 days and six hours
   • The seasons are caused because of the inclination of the Earth is tlted and the Earth not always recives the same kind of rays

7. Geografic coordenates

   • Latitude and Longitude
     • Latitude is The distance from a parallel to the Equator
       • Parallels
         • are circles from west to east and are imaginary
         • the main meridian is the Greenwich meridian
       • can be north or south
     • Longitude is the distance from a meridian to the greenwich meridian
       • Meridians
         • They are imaginary circles from north to south
         • the main meridian is the Equator
   • are imaginary circles that help us to lokate any point of the world

8. solstice

   • is when one emisphere recives a lot of sun light and the other less sun light

9. equinox

   • is when the both emisphers recive the same amount of sunlight

10. leap year

    • it hapens because one year has 365 days and 6 hours so every 4 years there is one day more