Young geologists piece together the puzzle of plate tectonics in an earth science lesson. Given a physical map of the world, they search for land formations that indicate the location of different types of plate boundaries.

How do scientists know they're right? Truth be told, they don't always know. Explore the scientific process using mystery tubes in an insightful activity. Young scientists discover how to approach and solve problems in science, how ideas...

Images of the Atapuerca Caves, the cave paintings at Altamira, and a Neanderthal skull found at Forbes' Quarry on Gibraltar serve to introduce kids to prehistoric sites in Spain. Designed to support a study of prehistoric Spain, the...

[Free Registration/Login may be required to access all resource tools.] This study guide looks at Darwin's theory of evolution and natural selection. It also looks at some of the evidence supporting the theory of evolution (comparative...

Concise description of embryology as evidence for evolution, as used by Darwin.

Explore the evidence for the theory of evolution.

Take a closer look into the modern view of evolution. This article includes many pieces of evidence, all which support the theory of evolution.

These pages are part of a site called "Evolution," that accompanies a textbook by the same name. Mark Ridley is the author. In this section he discusses how fossil records provide undeniable examples of evolutionary change.

The Understanding Evolution website for teachers provides common examples of evolution, especially by artificial selection.

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. In this section: the universal genetic code provides evidence that life has a common ancestor.

At the online companion Web site of "Evolution," the seven-episode series on PBS, piece together clues to how one of our early ancestors looked as you examine images from four significant fossil finds of Australopithecus afarensis.

These pages are from the Understanding Evolution website for teachers. They focus on homologous structures that organisms with common ancestors share.

These pages are part of a site called Evolution that accompanies a textbook by the same name. Mark Ridley is the author. In this section, he describes how artificial selection has provided many examples of evolutionary change. Examples...

Strengthen understanding of how different types of scientific evidence support the theory of evolution, including direct observation, fossils, DNA, biogeography, and comparative anatomy and embryology.

At the online companion Web site of "Evolution," the seven-episode series on PBS, delve into the private thoughts of a reluctant revolutionary--Charles Darwin.

These pages are part of a site called "Evolution," that accompanies a textbook by the same name. Mark Ridley is the author. These pages are about the house sparrow and the differences that can be observed in it in different geographical...

A site from the University of California-Berkeley on the sea-scorpion, an extinct arachnid. Shows evidence of evolution within the arachnid family.

Are nature's complex forms evidence of "intelligent design"? In this Evolution essay, biologist Kenneth Miller explains how the processes of evolution account for complex structures such as the human eye.

Good discussion of both sides of the debate over the origins of birds. Presents the recent evidence that seems to lean in the direction of the pro-dinosaur ancestry argument.

This site from BioWeb Evolution was originally created as a ThinkQuest entry, and it has some good basic information about evolution. This page is on fossils and geologic time.

The resource allows learners to read the book online for free. A group of experts explain the fundamental methods of science, document the overwhelming evidence in support of biological evolution, and evaluate the alternative...

Explore the dimensions of America's rich history by taking a detailed look at objects from our past. Examine stories, important moments, and the evolution of the American people via primary documents, photos, and other artifacts.

On this site, find answers to the exploration activity on human evolution. Questions discuss both physical traits of hominid as well as DNA evidence.

A very good article on the fossil evidence and the prominent theory on the evolution of birds. Addresses both sides and presents information. Predominently agrees with the pro-dinosaurian point of view.