Teachers' Domain is a multimedia digital library for the classroom that provides learning experiences in ways no textbook can. This ever-expanding library currently includes collections on: Science: Life Science, Physical Science,...

Harry and his students look at various arrangements of classroom desks in this video from Cyberchase.

This 25-page teacher resource (Word document) offers information and discussion questions on the ocean's neritic zone.

This interactive roller coaster ride produced for Teacher's Domain illustrates the relationship between potential and kinetic energy. As the coaster cars go up and down the hills and around the loop of the track, a pie chart shows...

This is a two-page PDF of Marzano's Art and Science of Teaching Framework Learning Map. This chart includes the four Domains: Classroom Strategies and Behaviors, Planning and Preparing, Reflecting on Teaching, and Collegielity and...

This video [14:33] shows a demonstration of academic vocabulary instruction through the context of a complex work, a poem. The teacher demonstrates how to access the literal meaning of new vocabulary and then infer the deeper meaning....

This video from Nature features the start of the monarch butterfly's northward trek. [3:02]

This illustrated essay from the NOVA Web site introduces the basic concepts of Einstein's General Theory of Relativity and what we know about cosmology as a result.

This illustrated essay from the NOVA Web site answers questions about irregularities in the tides.

ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket. [3:23]

This interactive activity from the NOVA Web site samples Galileo's experiments with falling objects, projectiles, inclined planes, and pendulums.

In this text excerpted from Chapter 3, "Struggle for Existence," of Charles Darwin's "On the Origin of Species," Darwin draws on firsthand and historical information for his observations about evolution.

This graphic illustrates some of the marsupial mammals in Australia and placental mammals in North America. Even though they are not closely related, these mammals look alike because they have adapted to similar ecological roles. From...

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.

In this letter written to his friend and mentor Charles Lyell less than three weeks after the publication of "On the Origin of Species", Darwin describes the reaction of the great anatomist Richard Owen to his theory. From Charles...

In this excerpt from the PBS series "Evolution," award-winning science journalist Carl Zimmer describes how gene duplication may have been the key to the rapid evolution of the early stages of life on Earth.

This Web quest from the PBS series "Evolution" will help you investigate a variety of types of evidence for evolution.

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.

In this graphic and article from "The Human Evolution Coloring Book" by Adrienne Zihlman, four different proteins from humans and horses are compared and the reasons each protein evolves at its own characteristic rate are discussed.

John Noble Wilford, a "New York Times" science writer, outlines various hypotheses on the origin of bipedalism.

This list from NOVA: "Cracking the Code of Life" Web site provides some of the basic, yet impressive, facts and figures about the Human Genome Project.

Browse through a table full of genetically modified (GM) foods to see what's available now and what's to come. From FRONTLINE/NOVA: "Harvest of Fear."

The homeobox genes that define the basic body plan of mice and fruit flies are illustrated in this graphic from The Human Evolution Coloring Book by Adrienne Zihlman. The accompanying article describes how these genes act as "molecular...

This document from NOVA: "Into the Abyss" describes the physical and behavioral traits of some of the least-known and most unlikely creatures on Earth.