This feature, adapted from Interactive NOVA: "Earth," follows the path of energy as it is transferred via the food chain from one type of organism to another.

This video segment, adapted from NOVA, describes the energy flow in a coral reef, including its food web.

In this lesson designed to enhance literacy skills, students examine energy forms in moving objects and discover how changes from one form to another move cars through a roller coaster ride.

On NOVA, a team of carpenters, timber framers, engineers, and historians recreate a medieval throwing machine called a trebuchet. This adapted video segment explores how understanding energy transfer informs their design.

In this video segment from NASA, robotics researcher Ayanna Howard uses engineering to improve the intelligence of robots in space exploration.

In this video segment adapted from NOVA scienceNOW, learn how what you eat, drink, or smoke may affect the instructions your epigenomes send to your genes, and as a result, change how your DNA is expressed.

Franklin works with Laverne to create a budget for a job painting a room, in this video segment from TV 411.

Harry estimates how long it will take him to get to the front of a long ticket line in this Cyberchase video segment.

In this media-rich lesson, students explore some of the ethical, legal, and social issues related to personal genetic testing and genome sequencing.

In this video excerpt from NOVA, learn about the advantages, disadvantages, and ethical implications of preimplantation genetic diagnosis, or PGD, a technique used to screen embryos created through in vitro fertilization for diseases.

Linda Black Elk is passionate about plants. Linda Black Elk is an ethnobotanist and professor of ethnobotany and science education at Sitting Bull College in Fort Yates, North Dakota and recently she traveled to the Cansayapi Oyate (the Lower Sioux Indian Community) to share her knowledge of medicinal plants with students there.

Two lesson plans for grades 9-12 are included as gallery assets and in the Support Materials.

Artist Evah Fan makes drawings, zines and more in a style that is influenced by wordplay and folk art techniques. She tells visual stories through her interpretation of words she finds tantalizing with their multiple meanings. She emphasizes that style is not a skill that can be found overnight, but rather developed over years and realized in retrospect.

In this NASA video, scientists describe how the Extreme Ultraviolet Variability Experiment will sample and track the Sun's ultraviolet irradiance, providing a detailed time sequence of extreme ultraviolet output -- data that can provide advance warning for potentially disruptive energy bursts.

In this adapted video segment, ZOOM guest Tommy takes us on a tour of the Florida Everglades. He describes what makes a wetland biome unique, including the soil, precipitation, and biodiversity.

How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE.

This video segment adapted from NOVA tells the story of two scientists who inadvertently discovered microwave radiation that is now believed to be heat left over from the Big Bang.

This video segment from Evolution: "Darwin's Dangerous Idea" illustrates the remarkable camouflage of a praying mantis against its leafy backdrop.

This video from Evolution explores the evolution of humans from a common ancestor of humans, chimpanzees, and other apes.

This video from Evolution highlights Charles Darwin's personal struggle to bring to light his theory of evolution through natural selection.

In this video from Evolution, an exploration of multi-drug resistant tuberculosis in the Russian prison system highlights one reason it is important to understand evolution.