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. The Earths Orbit: The
circumference of the orbit is
approximately 938,900,000. The
Earth travels along this
circumference at a speed of
106,000 kilometers per hour.

4. The Earths rotation
Rotates on its axis
It takes 24 hours.

5. Stratigraphy, in geology, the study of rock
layers, or strata, particularly their ages,
compositions, and relationships to other
rock layers. Stratigraphy provides
geologists with clues about the earth’s
past. Stratigraphy also allows geologists to
predict what types of rocks lie below the
ground and to understand geologic
processes. Consequently, most geologists
regularly use basic elements of
stratigraphy in their work.
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6. Origins of Earthquakes

7. Origins of Volcanic Eruptions