4. • Earth rotation:
• The earth rotates in its own axis.
• It rotates once every 23 hours, 56 minutes
and 4.1 seconds.
5. Layers of the earth:
•Crust
•Mantle
•Outer core
•Inner core
6. The Earth:
→Third planet from the sun
→The fifth largest planet in the solar system
in terms of size.
The Earth is not perfect sphere:
→The equator is 21 km wide .
→The north pole dilates 10 meters
→The south pole is sunk 31 meters.
7. Earth’s Orbit: the circumference of the orbit is
approximately 938,900,00km. The earth travels along
the circumference at a speed of 106,000 km per hour .
