the Public Broadcasting Service and
the WGBH Educational Foundation
This is a four-part series exploring materials that could shape our future, such as plastics that will dissolve in landfills, silk designed to be stronger than steel, smart pills, and micro-robots that zap disease. The segments are organized in four categories: Stronger, Smarter, Smaller, and Cleaner. The videos may be viewed free of cost in Flash format or may be purchased at minimal cost in DVD and Blu-Ray formats.
Don't miss the links to related interactive materials. In the activity "What's This Stuff", kids identify 10 mystery materials from a set of clues. "Nature's Super-Materials" lets students explore some of nature's stickiest, toughest, and cleanest materials.
6-8: 3A/M3. Engineers, architects, and others who engage in design and technology use scientific knowledge to solve practical problems. They also usually have to take human values and limitations into account.
9-12: 3A/H1. Technological problems and advances often create a demand for new scientific knowledge, and new technologies make it possible for scientists to extend their research in new ways or to undertake entirely new lines of research. The very availability of new technology itself often sparks scientific advances.
3C. Issues in Technology
6-8: 3C/M4. Technology is largely responsible for the great revolutions in agriculture, manufacturing, sanitation and medicine, warfare, transportation, information processing, and communications that have radically changed how people live and work.
9-12: 3C/H1. Social and economic forces strongly influence which technologies will be developed and used. Which will prevail is affected by many factors, such as personal values, consumer acceptance, patent laws, the availability of risk capital, the federal budget, local and national regulations, media attention, economic competition, and tax incentives.
4. The Physical Setting
4D. The Structure of Matter
3-5: 4D/E6. All materials have certain physical properties, such as strength, hardness, flexibility, durability, resistance to water and fire, and ease of conducting heat.
6-8: 4D/M1a. All matter is made up of atoms, which are far too small to see directly through a microscope.
6-8: 4D/M5. Chemical elements are those substances that do not break down during normal laboratory reactions involving such treatments as heating, exposure to electric current, or reaction with acids. All substances from living and nonliving things can be broken down to a set of about 100 elements, but since most elements tend to combine with others, few elements are found in their pure form.
6-8: 4D/M13. The idea of atoms explains chemical reactions: When substances interact to form new substances, the atoms that make up the molecules of the original substances combine in new ways.
8. The Designed World
8B. Materials and Manufacturing
6-8: 8B/M1. The choice of materials for a job depends on their properties.
6-8: 8B/M2. Manufacturing usually involves a series of steps, such as designing a product, obtaining and preparing raw materials, processing the materials mechanically or chemically, and assembling the product. All steps may occur at a single location or may occur at different locations.
6-8: 8B/M5. Efforts to find replacements for existing materials are driven by an interest in finding materials that are cheaper to obtain or produce or that have more desirable properties.
6-8: 8B/M6. Some materials, such as plastics, are synthesized in chemical reactions that link atoms together in long chains. Plastics can be designed to have a variety of different properties for a variety of uses.
9-12: 8B/H1. Manufacturing processes have been changed by improved tools and techniques based on more thorough scientific understanding, increases in the forces that can be applied and the temperatures that can be reached, and the availability of electronic controls that make operations occur more rapidly and consistently.
9-12: 8B/H4. Increased knowledge of the properties of particular molecular structures helps in the design and synthesis of new materials for special purposes.
%0 Electronic Source %D January 15, 2011 %T NOVA: Making Stuff %I Public Broadcasting Service %V 2015 %N 29 March 2015 %8 January 15, 2011 %9 application/flash %U http://www.pbs.org/wgbh/nova/tech/making-stuff.html
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