CK-12 Foundation
Ck 12: Earth Science: Correlation Using Relative Ages Study Guide
This comprehensive study guide covers the main terms and concepts needed for an earth science unit on correlation using relative ages. Review questions are included at the bottom of the study guide.
CK-12 Foundation
Ck 12: Earth Science: Geologic Time Scale Study Guide
Take a quick look at Earth's geologic time scale.
CK-12 Foundation
Ck 12: Life Science: 4.12 Geologic Time Scale
Understand the history of the Earth through geologic time.
Treehut
Suzy's World: Life on Earth
This site from Suzy's World, which is a personal site from Suzy Cato, explores what evolution is, and how long there has been life on earth. Content includes fun facts, a great experiment, and a classroom activity.
American Geosciences Institute
American Geosciences Institute: Careers: Paleontologist
Learn about the work of a paleontologist, and find out what it takes to work in the field of paleontology.
Other
Ancestral Flatworms
Gives the history of flatworms and how they evolved. Gives the different types of flatworms, including the tapeworm.
TED Talks
Ted: Ted Ed: Four Ways to Understand the Earth's Age
The Earth is 4.6 billion years old- but how can humans relate to a number so colossal, and where do we fit on the geologic timeline? Joshua Sneideman reminds us of our time and place in the universe. [3:45]