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Browse results: Matter

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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