EVOLUTION I. Theory of Evolution Differences in individuals can lead to changes in an entire species Began with Charles Darwin, now expanded upon by scientists I. Theory…

* Earth’s History * Earth’s History Planet Earth is approximately 4.5 X 109 years old Rocks of the crust provide clues to Earth’s past By analyzing these clues we can…

The Geologist as Detective THE PRINCIPLES USED IN DETERMINING THE ORDER IN WHICH ROCKS WERE FORMED The idea that processes that shape the Earth, such as volcanoes, earthquakes,…

* Earth’s History Planet Earth is approximately 4.6 billion years old Rocks of the crust provide clues to Earth’s past By analyzing these clues we can infer events from…

EVOLUTION I. Theory of Evolution Differences in individuals can lead to changes in an entire species Began with Charles Darwin, now expanded upon by scientists I. Theory…

* Earth’s History * Earth’s History Planet Earth is approximately 4.5 X 109 years old Rocks of the crust provide clues to Earth’s past By analyzing these clues we can…