Helium Is Boring

In this video adapted from the National Science Center, observe a demonstration to discover how helium gas is inert and hydrogen gas is reactive.

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Homo Sapiens Versus Neanderthals

This video segment, adapted from NOVA, explores reasons why Homo sapiens had an advantage over Neanderthals in the pursuit of territory and natural resources.

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How DNA Evidence Works

In this article by An Meeker-O'Connell, discover how DNA evidence is processed before it goes to court.

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How Would You Turn a Bolt in Space?

In this fast-paced NASA Brain Bites™ video, an astronaut demonstrates the impact of microgravity on the use of tools in space.

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Hubble Telescope: Looking Deep

This video segment adapted from the Space Telescope Science Institute shows what the Hubble telescope found when it stared at a single, nearly empty spot in the sky for 10 days in 1995. The unexpected result was a picture of a multitude of galaxies stretching into the distance.

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Hummingbirds

This video segment from Outdoor Nevada explores the traits, behaviors, and habitat of four hummingbird species.

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The Hydrologic Cycle

View the five processes of the hydrologic cycle in this interactive resource adapted from NASA in which animations illustrate condensation, precipitation, infiltration, runoff, and evapotranspiration.

Infrared Gallery

How would your world look if you saw heat instead of light? In this interactive resource produced for Teachers' Domain, see what familiar objects look like through an infrared camera and watch infrared videos of geysers, mudpots, and hot springs.

Infrared: More Than Your Eyes Can See

In this video segment adapted from NASA, astronomer Michelle Thaller introduces the world of infrared light and demonstrates how infrared cameras allow us to see more than what the naked eye can perceive.

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The Jet Stream and Horizontal Temperature Gradients

Explore and manipulate the relationship between wind speed and temperature gradients in this interactive activity adapted from the University of Wisconsin-Madison.

The Kemps Ridley Sea Turtle

This video adapted from Texas Parks and Wildlife Department describes how humans are helping restore safe nesting grounds for the critically endangered Kemp's ridley sea turtle to ensure its successful repopulation.

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Laetoli Trackways Diagram

View a diagram of the hominid footprints that archaeologist Mary Leakey's team found at Laetoli in Tanzania.

Life Cycle of a Seed Plant

In this interactive activity adapted from the University of Alberta, learn about each step in the life cycle of a seed plant.

Light Pollution

In this interactive activity adapted from the National Park Service, learn how light pollution affects the night sky, animals, and humans, and then explore several possible solutions.

Living from the Land and Sea

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.

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Losing Permafrost in Alaska

In this video segment adapted from Spanner Films, learn how Alaska Native communities that rely on hunting and fishing are threatened by rising temperatures and melting permafrost.

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Mapping Magnetic Fields

This video adapted from NASA explains how a magnetometer determines magnetic fields around planets.

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Masses and Springs

In this interactive simulation adapted from the University of Colorado's Physics Education Technology project, hang various masses from different springs and see the kinetic, potential, and thermal energy of each spring system. You can even slow time or move your demonstration to another planet.

Mirror Neurons

This video segment, adapted from NOVA scienceNow, introduces the latest research on a system of neurons that plays a part in how people relate to each other.

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Mitochondrial Flyover

This video segment illustrates the three-dimensional structure of a mitochondrion, the organelle that powers nearly every cellular process in your body.

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