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eBook
Blackdog Media

Classic Reader: Authors: Charles Darwin

For Students 9th - 10th
This site features the author Charles Darwin including the full text of the nonfiction book Origin of Species.
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Handout
Other

Evolution: The Theory of Natural Selection (Part 1)

For Students 9th - 10th
These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.
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Activity
Bryn Mawr College

Bryn Mawr College: Evolution by Natural Selection

For Students 9th - 10th
Students develop their understanding of natural selection by analyzing specific examples and carrying out a simulation.