How can you lift a heavy metal table using air? In this video segment adapted from ZOOM, cast members succeed in lifting a table using their own breath and a few plastic bags.

This video segment adapted from Shedding Light on Science describes how astronomical distances can be measured in units of light-years, and how the finite speed of light allows astronomers to study how the universe looked long ago.

This video segment adapted from Shedding Light on Science demonstrates the law of reflection by showing how light energy is reflected off both smooth and rough surfaces at predictable angles.

What is it that distinguishes a living organism from a nonliving object? This collection of images presents examples that aren't as clear-cut as one might think, enticing students to question the meaning of life.

In this video segment adapted from the Alaska Native Heritage Center, discover the connections between Alaska Native subsistence culture and the natural cycle of the seasons.

This article examines the reading comprehension strategy known as making connections. It involves linking what is being read (the text) to what is already known (schema, or background knowledge). The author provides links to four online resources that will help readers use the strategy in K-5 science and literacy classrooms. The article appears in the free, online magazine Beyond Weather and the Water Cycle, which integrates science and literacy instruction.

The reading strategy known as making connections can greatly enhance students' understanding of any text. This article offers resources that teachers can use to instruct K-5 students in using the strategy. The free, online magazine Beyond Weather and the Water Cycle integrates science and literacy instruction. Each issue contains lessons and activities that combine literacy and science experiences.

This article discusses the reading instruction strategy of predicting and shows how it applies to science learning in the elementary school grades. It appears in the free online magazine Beyond Weather and the Water Cycle, which provides a first introduction to the Seven Essential Principles of Climate Literacy.

In this adapted ZOOM video segment, cast members get hands-on in the recycling process by using old newspapers to make new paper.

In this video segment adapted from ZOOM, cast members make a seismometer and experiment with different ways to make it register movement.

This video segment from NOVA: "The Mystery of Animal Pathfinders" explores how the migratory patterns of shorebirds have evolved to coincide with the spawning of horseshoe crabs.

In an interview, a zookeeper at the Columbus, Ohio, polar bear exhibit describes time she spent at Churchill, Manitoba, educating tourists about polar bears and what can be done to help populations in the wild. This interview appeared in the free, online magazine Beyond Penguins and Polar Bears.

This video segment adapted from Discovering Women profiles Fermilab physicist and Harvard professor Melissa Franklin.

All animals develop and grow over time. The animals in this video segment, however, undergo very dramatic changes on their way to adulthood -- a developmental process known as metamorphosis.

In this video from DragonflyTV, Tiana and Sammy measure, record, and analyze the results of a drop box test to find out how everyday items behave in microgravity.

This video segment from NOVA: "The Mystery of Animal Pathfinders" explores the migratorial exploits of monarch butterflies.

In this interactive activity from ChemThink, learn about covalent molecules and how the VSEPR theory predicts the shapes of covalently-bonded molecules.

This video segment follows neurophysiologist Allen Counter as he studies an epidemic of hearing loss in Moriussaq, Greenland, one of the quietest places on Earth. Footage from NOVA: "Mystery of the Senses: Hearing."

This video segment adapted from NOVA relates the dramatic story of vulcanologists trying to predict the timing of the cataclysmic eruption of Mount Pinatubo in the Philippines.

This interactive activity adapted from A Science Odyssey Web site helps you visualize different types of plate tectonic activity and shows the impact this activity has on Earth's surface.