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Chapter 13: Geologic Time

UCMP Web Time Machine
Visit this online geologic time scale. As part of a class project, choose a portion of the time scale and write an explanation about the environment and the types of animals that lived in it. Display the entire scale in your class.


Extinctions: Cycles of Life and Death through Time
Mass extinctions have occurred throughout Earth's history. Visit this site for an online overview. What was the most recent major and minor extinctions?

Palaeontology Project
What killed off the dinosaurs? The Palaeontology Project in the UK offers this explanation of an asteroid impact. Read this article and write a summary in your science journal.


EE-Link Endangered Species
List of endangered species in the U.S. and the world; includes natural history of endangered species. Use this site to discover what animals are endangered or extinct in your area of the country.

Discovering the Past (On the Internet)

The Fossil Hunter

The Unnatural Museum - What Is a Fossil?

Fossil Collections of the World

Unit 4: Change Through Time

Natural Selection
This page has a Java simulation that demonstrates allele frequency and natural selection. Choose various numbers for this simulation and run the experiment.

Enter Evolution: Theory and History
Visit this site to learn more about the scientists whose ideas contributed to the development of the theory of evolution. Write an entry in your journal entry pretending that you are a dinosaur researcher from the 1800s, explaining your theories.

Welcome to Primate Info Net
Information about primates; includes links to primate centers and organizations. Find out about the International Directory of Primatology. What is the purpose of this organization?

Order Primates
Access this site for detailed information about primates. Which living primates are the smallest? Which are the largest? Into what two large groups are living primates divided?

Paleontology Without Walls
Visit the virtual exhibits at this site to learn more about paleontology. Use the information on this site to construct your own geologic time line and display it in your classroom.

Learning From Fossils
Fossils provide scientists with clues about Earth's past. Go to the University of California's Museum of Paleontology to learn more about fossils. What type of things can scientists learn by studying fossils? Read some articles on this site and then write a entry in your science journal explaining how paleontology can help society.

The Origin of Life
This is a virtual tour of an exhibit about the origin of life. Visit this Web site and look at the different exhibits. Write captions for each picture shown on the Web site.

Origins of Humankind Web site
Current articles that explore the origins of humans. Browse through some of the articles and summarize one of them in your science journal.

Geology and Geologic Time
This site provides information about the geologic relationships of rock layers, as well as much about geologic time and the history of the earth. As a group project, develop a poster showing the different eras of geologic time.