Food or Fuel?

The Chemistry and Efficiency of Producing Biodiesel

Fracture Surfaces of Paperclips

This video features a Penn State University professor, Dr. Chris Muhlstein, who explains that the fracture surface of a paper clip is a map of how it failed, to a trained eye. He invites us to view a variety of surfaces with a virtual microscope.

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Fuel Cells

In this video segment adapted from NOVA scienceNOW, hydrogen fuel cell cars promise pollution-free driving, but will we see them anytime soon?

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Fusion Energy Advances

In this report from the NewsHour, correspondent Spencer Michels reports on ongoing efforts to produce fusion energy to help fuel American energy independence.

Fusion: Testing the First Hydrogen Device

This video segment adapted from AMERICAN EXPERIENCE features original footage of the U.S. test of the first hydrogen device, code-named "Mike", that would trigger thermonuclear fusion.

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Fusion: The Hydrogen Bomb

Just after World War II, nuclear scientists turned their attention from fission to fusion. This video segment adapted from AMERICAN EXPERIENCE looks at the beginnings of thermonuclear power generation.

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Galileo on the Moon

Watch Apollo 15 astronaut David Scott perform Galileo's falling objects experiment on the Moon in this video segment from NASA.

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Galileo's Telescope

The invention of the telescope helped change our understanding of the universe. This video segment adapted from NOVA looks at Galileo's contribution to this technology.

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Gas Properties

In this interactive simulation adapted from University of Colorado’s Physics Education Technology project, change parameters and discover how the properties of a gas vary in relation to each other.

Get Close to a Nuclear Fission Reaction!

Learn how scientists regulate a nuclear reactor in this animation-enhanced essay from the FRONTLINE Web site.

Give It A Shake, Cornstarch Comes Alive

In this video from Science Friday, learn about a surprising mixture, known as a complex fluid.

Glider Boy

Meet 12-year-old Jesse, the designer of dozens of gliders, in this ZOOM video segment. Some of his gliders fit in your hand, while others can only be stored in the garage. Watch his gliders go and learn why they fly.

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Global Warming and The Greenhouse Effect

This video excerpt from Race to Save the Planet discusses the greenhouse effect and global warming.

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Global Warming: Beyond Fossil Fuels

Martin Hoffert, professor of physics at New York University, discusses global warming and alternative energies in this interview from the NOVA/FRONTLINE Web site.

Global Warming: Carbon Dioxide and the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE demonstrates the physical property of carbon dioxide that causes the greenhouse effect.

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Global Warming: Graphs Tell the Story

Examine these graphs from the NOVA/ FRONTLINE Web site to see dramatic increases in the temperature of Earth's surface and greenhouse gases in the atmosphere.

Global Warming: The Hydrogen Car

Is the hydrogen car the answer to global warming? This video segment adapted from NOVA/FRONTLINE looks at the pros and cons of this developing technology.

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Global Warming: The Physics of the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE examines the greenhouse effect, its role in keeping Earth habitable, and the industrial changes that have led to an increase in the planet's average temperature.

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Gooey Gak

Students experiment with another type of non-Newtonian fluid called Gak in this lesson based on the Science Friday video segment Give it a Shake, Cornstarch Comes Alive.

Graphing the Periodic Table

This interactive activity from the American Chemical Society presents the properties and electron configurations for all the elements in the periodic table. Discover patterns by plotting the elements' properties according to their place in the table.