Apologia General Science (Sonlight) Module 8
Vocabulary from the Sonlight Instructors Guide
Fossils that are assumed to represent a certain period in earth's past.
A theoretical picture in which layers of rock from around the world are meshed together into a single, unbroken record of earth's past
The Theory of Evolution
A theory stating that all of life on this earth has one (or a few) common ancestors that existed a long time ago.
An unconformity for which there is not evidence but some geologists think should exist