Physical Geography

Human Geography

The Solar System

Earth’s orbit and rotation

Solstices and equinox

Rotation, orbit and its consequences

Geographic coordinates

Earth’s layers

Mantle convection

Continental drift

Three types of plate boundary.

Geologic time scale

The largest defined unit of time is the supereon, composed of eons. Eons are divided into eras, which are in turn divided into periods, epochs and ages.

http://en.wikipedia.org/wiki/Geologic_time_scale

http://www.slideshare.net/isaacbuzo/historia-geologica

Main geological zones