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RESOURCE	GRADE LEVEL	MEDIA TYPE
100's Day What does 100 look like? Sound like? Feel like? In this video from Curious George, explore the many ways to measure 100 things. Accessibility features: Caption	K-2	Video
Acids and Bases: Cabbage Juice Indicator In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base. Accessibility features: Caption	3-8	Video
Acids and Bases: Making a Film Canister Rocket In this video segment, ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket. Accessibility features: Caption	K-5	Video
Acids and Bases: Testing Rocket Cars In this ZOOM video segment, cast members make bottle rocket cars using lemon juice and baking soda, and experiment with different ways of launching the cars. Accessibility features: Caption	3-8	Video
Acids and Bases: Testing Rockets What happens when you mix baking soda and lemon juice? Watch the ZOOM cast launch a rocket using kitchen chemistry. Accessibility features: Caption	3-8	Video
Air Power: Experimenting with Balloons In this video segment adapted from ZOOM, cast members experiment with the amount of air expelled first from a balloon, then through a straw attached to it, and see how both affect a balloon's behavior. Accessibility features: Caption	3-8	Video
Air Power: Making a Hovercraft In this video segment adapted from ZOOM, cast members make their own hovercraft and demonstrate how the air leaking out of a balloon can make a plastic plate hover above a table. Accessibility features: Caption, Transcript	K-8	Video
Atomic Arrangements in Solids This video/animation asks the question "So if the same molecules are in the solid, liquid, and vapor forms of water, why are their properties so different?" The properties of a material are affected not just by the kinds of atom in it, but also by how they are arranged, and how free they are to move around. Forms of carbon are introduced, from graphite to buckyballs. Accessibility features: Caption	6-12	Video
Atomic Structure of an Alloy Learn about the atomic structure of bronze, a copper alloy, in this video excerpt from NOVA: "Hunting the Elements." Accessibility features: Caption, Transcript	6-12	Video
Atoms: The Space Between This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid? Accessibility features: Caption	6-12	Video
Balloon Brain: Designing a Helmet In this video segment adapted from ZOOM, cast members are challenged to design protective headgear for a water balloon using what they know about the properties of the materials available. Accessibility features: Caption, Transcript	K-8	Video
Bend, Twist and Break: Beyond the Laboratory Dr. Chris Muhlstein explains that when scientists study fracture surfaces from controlled experiments to understand the resulting shapes and features, they can use their understanding to deduce what happened when they were not around to see the material fail or break. Further they can predict what will have to a larger or smaller piece of material under stress. This process is how scientists and engineers translate a lab experiment into a design for an airplane, bridge or even a bike frame. Accessibility features: Caption	6-12	Video
Bend, Twist and Break: Breaking Glass Dr. Chris Muhlstein explains that researchers learn about the scientific basis for failure of materials by running experiments in the lab, using a simple shape like a glass rod to calculate the strength of material and predict its failure. The same tests can be done at the micro and nano scale using tiny specimens. Students can run a similar experiment with a bar of chocolate. Accessibility features: Caption	6-12	Video
Bend, Twist and Break: Fracture Surfaces Dr. Chris Muhlstein explains that fracture surfaces can reveal how and why a material has failed. An image of a fracture surface has features or shapes that we can use to understand where a material failed and why. Scientists use an optical microscope or a scanning electron microscope to read a fracture surface at high magnifications, much like we read maps to find our way. Accessibility features: Caption	6-12	Video
Bend, Twist and Break: The Bridge Dr. Chris Muhlstein explains that the arrangement of atoms in a material determines the properties. He drops an iPod to illustrate how the arrangement of atoms can protect it from damage; he narrates footage of the collapse of the Tacoma Narrows Bridge in the 1940s to show how the deformation of materials can cause the collapse of a structure. Accessibility features: Caption	6-12	Video
A Boat That Floats In this video from Curious George, children build boats out of everyday materials and then predict and observe whether the boats sink or float. Accessibility features: Caption	K-2	Video
Capturing Carbon In this video segment adapted from NOVA scienceNOW, a scientist, inspired by his daughter's science fair project, develops a synthetic "tree" to remove excess carbon dioxide from the air. Accessibility features: Caption	6-12	Video
The Chemistry of Makeup In this video from DragonflyTV, join Jazi and Danielle as they experiment with different combinations of everyday ingredients in order to create and test batches of lip gloss. Accessibility features: Caption	5-8	Video
Columns: Experimenting with Balloons Watch the ZOOM cast find out how many balloons filled with air and then with water are required to support the weight of a cast member. Accessibility features: Caption, Transcript	3-8	Video
Cooking Cookies with Solar Power In this video segment adapted from ZOOM, two solar cookers are tested against a control to see which can cook a "s'more" faster. Accessibility features: Caption	K-8	Video
Counting Neutrons on the Moon Find out how scientists are using a neutron detector onboard a satellite to try to find water on the Moon in this video adapted from NASA. Accessibility features: Caption	9-12	Video
Defy Gravity! Balancing Balls on Air In this video segment adapted from ZOOM, cast members use a hair dryer to balance a ball in a stream of air, seemingly defying gravity. Accessibility features: Caption, Transcript	K-8	Video
Defy Gravity! Upside Down Ping Pong Ball In this video segment, the ZOOM cast is challenged to keep a ping pong ball in a funnel while the funnel is held upside down, seemingly defying gravity. Accessibility features: Caption	3-8	Video
Density and Buoyancy: Experimenting with Club Soda In this video segment adapted from ZOOM, the cast discovers that gas-filled bubbles act like life jackets for raisins, making them buoyant. Accessibility features: Caption, Transcript	K-8	Video
Density and Buoyancy: Making Eggs Float Why does an egg float in salt water? Learn about density and buoyancy in this video segment adapted from ZOOM. Accessibility features: Caption	K-8	Video
Density and Buoyancy: Mixing Hot and Cold Water Watch warm water float on top of cold water in this video segment adapted from ZOOM. Accessibility features: Caption, Transcript	K-8	Video
Density and Buoyancy: Pouring Air into Water This video segment adapted from ZOOM offers a clever demonstration of buoyancy by showing how to pour a cup of air into a cup filled with water. Accessibility features: Caption, Transcript	K-8	Video
Density and Buoyancy: Testing Liquids Will a grape float in oil? Will a metal nut sink in corn syrup? Watch as the ZOOM cast tests the buoyancy of a variety of liquids and objects. Accessibility features: Caption, Transcript	K-8	Video
Designing a Puff Mobile The air you exhale can power a puff mobile. Watch as the ZOOM cast races their air-powered designs to see which design features are the most successful. Accessibility features: Caption, Transcript	K-5	Video
Designing Balloon Cars Can the air in a balloon power a car? Watch students from Weston, Massachusetts, demonstrate their balloon car designs in this video adapted from ZOOM. Accessibility features: Caption, Transcript	3-8	Video
Detecting Life on Other Planets In this video from NOVA scienceNOW, learn how scientists detect potential signs of life on distant planets. Accessibility features: Caption	6-12	Video
Developing the Periodic Table This video excerpt from NOVA: "Hunting the Elements" looks at how early chemists developed the periodic table of elements. Accessibility features: Caption, Transcript	6-12	Video
Do Materials Get Tired? Creep This video explains that materials will deform slowly or “creep” under the right conditions, when constant force is applied. “Strain” is illustrated with rubber bands and we learn that engineers can calculate creep strain as a function of time. Accessibility features: Caption	6-12	Video
Do Materials Get Tired? Fatigue This video explains how the strength of a material can be measured in the laboratory and used to design structures, like bikes, airplanes, and even chairs. We see a controlled lab experiment that applies precise force to a paperclip until it breaks. Accessibility features: Caption	6-12	Video
Do Materials Get Tired? Intro This video explains matter is made up of atoms that dictate the properties of materials. Mechanical engineers measure the stress a material can take until it breaks. Their ultimate goal is to make a material that will repair itself. Accessibility features: Caption	6-12	Video
Don't Mess with Mercury Learn about the dangers of mercury in this short video from the U.S. Environmental Protection Agency. Accessibility features: Caption	3-12	Video
The Electromagnetic Spectrum: FRONTLINE This video segment adapted from FRONTLINE introduces the electromagnetic spectrum and explains how the various types of electromagnetic waves are distinguished by the amount of energy each wave carries. Accessibility features: Caption	6-12	Video
The Electromagnetic Spectrum: NASA From radio waves to gamma rays, this video segment from NASA introduces the seven categories of the electromagnetic spectrum and how each type of radiation is part of our everyday lives. Accessibility features: Caption	3-12	Video
Electrophoresis and Gel Analysis In this animation produced by WGBH and Digizyme, Inc., see how molecules of DNA are separated using gel electrophoresis, and how this process enables scientists to compare the molecular variations of two or more DNA samples. Accessibility features: Caption	9-12	Video
The Elements: Forged in Stars The story of how elements from lithium to uranium are created by stars is illustrated through animation and a hands-on periodic table in this video segment adapted from NOVA. Accessibility features: Caption	6-12	Video
Everyday Radiation How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE. Accessibility features: Caption	6-12	Video
Experimenting with a Glass Xylophone In this video segment adapted from ZOOM, the cast investigates how the pitch of sound changes when they strike a variety of glasses filled with different amounts and types of liquids. Accessibility features: Caption	3-8	Video
Exploring Windmill Design In this video segment adapted from ZOOM, cast members are challenged to design a windmill that can be powered by a hair dryer. Accessibility features: Caption	3-8	Video
Fireworks! Lifting Charge In this video segment adapted from NOVA, learn how pyrotechnicians use common compounds to blast fireworks into the sky and give them shape. Accessibility features: Caption	6-12	Video
Fireworks! Making Color What gives a fireworks display its brilliant blue, green, and red colors? Learn how pyrotechnicians give fireworks color in this video segment adapted from NOVA. Accessibility features: Caption	6-12	Video
A Fission Chain Reaction This video excerpt from NOVA: "Hunting the Elements” uses ping-pong balls and mousetraps to demonstrate nuclear fission. Accessibility features: Caption, Transcript	6-12	Video
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. Accessibility features: Caption	6-12	Video
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? Accessibility features: Caption	6-12	Video
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. Accessibility features: Caption	6-12	Video
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. Accessibility features: Caption	6-12	Video