1. Description of the Earth
Shape and size
Layers
Movements

2. The Earth
•Is the third planet of the solar system
•Is the sixth largest planet of the solar system
The Earth is not a perfect sphere
•The equator circumference is about 24,901.55 miles
•The north pole is dilated 10 meters
•The equator is 27km wide.

3. Earth’s rotation: The Earth rotates along its axis.
It rotates once every 23 hours ,56 minutes and4.1 seconds

4. Origins of Earthquakes

5. Origins of Volcanic Eruptions