The Three Types of Rocks
Gerry pointing to a blackboard The right amount of heat…
Minerals
Gerry with his rock collection As a geologist, it is my…
The Earth Inside-Out, Part III
Hawaii Ah, Hawaii. I just love this place. The land is …
The Earth Inside-Out, Part II
Diagram of the layers of the earth Today, we are going …
The Earth Inside-Out, Part I
Gerry digging Hello! Gerry the Geologist here again.&nb…
Our Home, Earth
Gerry the Geologist Hello, kids! My name is Gerry and I…
The Inca: Machu Picchu—A Lucky Discovery
Hiram Bingham Now we come to the amazing tale of an arc…
The Inca: The Runner
Runner waiting for his message He waited by the side of…
The Inca: Who Were the Inca?
Map of the Inca Empire The Inca were one of many groups…