This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.

In this video segment from Evolution: "Extinction!", geologist Peter Ward discusses evidence for a Permian-Triassic mass extinction.

Watch the rubber bands vibrate on homemade guitars in this video segment adapted from ZOOM as cast members talk about pitch and demonstrate how to make a cereal box instrument.

This video segment, adapted from ZOOM, explores the different sounds that a simple drinking straw can produce when you cut the straw and blow into it.

This video segment, adapted from ZOOM, demonstrates how to use a drinking straw and a bottle full of water to make low- and high-pitched sounds.

Learn about NASA’s Kepler mission and how scientists search for planets orbiting stars outside our solar system in this video segment adapted from NOVA.

In this media-rich, self-paced lesson, students explore the industries that produce and rely on advanced technology and assess how their goals and interests may make them well suited for a career in this cutting-edge sector.

This video segment adapted from A Science Odyssey uses animation and archival footage to provide an overview of the theory of plate tectonics.

This video segment adapted from NOVA uses animation to show the relationship between the movement of a tectonic plate and whether volcanoes on the Hawaiian Islands are active or dormant.

In this lesson designed to enhance literacy skills, students learn about population sampling by watching how a Native American tribe measures the number of fish in their lake.

In this lesson designed to enhance literacy skills, students learn about the positive effects that exercise has on the body and some activities they can do to improve their health.

This video segment explores the role of touch in the development of young animals, including humans. Footage from NOVA: "Mystery of the Senses: Touch."

In this video adapted from Texas Parks and Wildlife Department, learn about the prairie dog, the importance of its role in its ecosystem, and how it is affected by an ever-growing human population.

In this video segment adapted from A Science Odyssey, follow two scientists and their Nobel Prize-winning efforts to cure bacterial infections using penicillin.

In this media-rich, self-paced lesson, students explore some of the technologies designed to detect and treat inherited diseases and the ethical debate surrounding them.

Learn about the dynamic relationships between a jet engine's heat loss, surface area, and volume in this video adapted from Annenberg Learner's Learning Math: Patterns, Functions, and Algebra.

In this interactive periodic table from the NOVA Web site, find out the role of various elements in making fireworks.

In this video segment adapted from NOVA scienceNOW, learn about RNAi's potential to treat a wide range of genetic and infectious diseases.

In this lesson designed to enhance literacy skills, students learn how to use fractions to interpret the nutritional information contained on food labels.

In this lesson designed to enhance literacy skills, students learn about the advantages and disadvantages of the two basic forms of reproduction for the living things that practice them.