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Integration of Nanoscience into a Seventh Grade Science Course

Integration of Nanoscience into a Seventh Grade Science Course. Peter J. Watts Riverside Middle School Watertown, WI wattsp@watertown.k12.wi.us. From Earth Science to Life Science.

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Integration of Nanoscience into a Seventh Grade Science Course

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  1. Integration of Nanoscience into a Seventh Grade Science Course Peter J. Watts Riverside Middle School Watertown, WI wattsp@watertown.k12.wi.us

  2. From Earth Science to Life Science Nature uses efficient means to create the many unique properties found in the structures of minerals, plant and animals It is impossible to separate geology and biology. The biotic and abiotic components of the environment interact constantly and are often dependent on one another Animals and plants have many surprising adaptations making them especially successful in their respective niches

  3. http://www.lpzoo.com/animals/FACTS/mammals/images/giraffe.jpghttp://www.lpzoo.com/animals/FACTS/mammals/images/giraffe.jpg http://www.acsu.buffalo.edu/~meroaldi/images/snowshoe%20hare.jpg Nature has adapted structures to suit the needs of the organism. These help the organism survive Camouflage is a color adaptation while extremely long necks is a physiological adaptation

  4. http://www.ent.iastate.edu/images/lepidoptera/monarch/monarchonalf.jpghttp://www.ent.iastate.edu/images/lepidoptera/monarch/monarchonalf.jpg http://www.cirrusimage.com/butterfly/viceroy_06.jpg Animals sometimes mimic other animals. On the left is a Monarch butterfly and on the right is a Viceroy butterfly. Look closely for subtle differences Why would a Viceroy want to look like a Monarch?

  5. Nature has produced some fantastic survival designs that include behavior, color, and body morphology which can be observed on the MACROSCALE… But what about NANOSCALE adaptations? Can scientists look at organisms at the tiniest levels and learn from these designs?

  6. Humans can learn from nature We can build more effective tools and develop better technologies for solving problems by observing nature’s designs Instead of ‘reinventing the wheel’ we can use those designs already found in nature We refer to this as Geomimicry and Biomimicry

  7. Biomimicry “Biomimicry (from bios, meaning life, and mimesis, meaning to imitate) is a new science that studies nature's best ideas and then imitates these designs and processes to solve human problems. Studying a leaf to invent a better solar cell is an example. I think of it as "innovation inspired by nature.” Janine Benyus

  8. Nature’s array of structure and design is amazing. These are just a few examples of Gecko feet http://www.lclark.edu/~autumn/PNAS/PNAS_images/GeckoFeet_300.jpg

  9. Geckos have millions of microscopic hairs on the bottom of their feet that act like an adhesive, allowing them to climb up walls and even on glass (Kellar Autumn/Lewis & Clark College) http://jscms.jrn.columbia.edu/cns/2005-04-05/azimi-biomimicry/Gecko01.jpg/asset_small

  10. http://www.sciencenews.org/articles/20050108/a5757_1486.jpg When the underside of a gecko toe (left) was dusted with microspheres and pressed onto glass, millions of sticky fibers in the thin, plate-like structures shed microspheres onto the glass, leaving a print visible under laser light (right)

  11. http://www.vigyanprasar.com/comcom/feature50.htm “In fact, the adhesive is so strong that a single seta can lift the weight of an ant. A million setae, which could easily fit onto the area of a dime, could lift a 45-pound child.” Dr. Kellar Autumn, a biologist at Lewis and Clark College

  12. Researchers have figured out the secret to Gecko design: Dirt weakens adhesive bonds. If we can find a way to shed surface dirt we could improve surface-attachment design for mountain climbers and even robots!

  13. Scientists have made Carbon Nanotubes that mimic Gecko Feet http://news.rpi.edu/update.do?artcenterkey=1020&setappvar=page(1)

  14. http://newdimensiontechnology.blogspot.com/2010/06/unknown-technology-in-nanotechnology.htmlhttp://newdimensiontechnology.blogspot.com/2010/06/unknown-technology-in-nanotechnology.html

  15. http://coolscitech.com/news/newsid=8.php http://medlibrary.org/medwiki/Synthetic_setae

  16. The Lotus Effect: Another of Nature’s designs http://www.bath.ac.uk/~ensab/B-man/tr_11_00/ This is a lotus leaf that has been covered with a sprinkling of fine red powder (Sudan-III pigment powder: 1 - 20  microns, Merck) It cleans itself after a rain Barthlott and Neinhuis

  17. Lotus leaves are HYDROPHOBIC which means they don’t like water and repel it. As the water slides down the leaf it picks up debris. This effect is caused by nanosized ‘bumps’ on the surface of the leaves Diagram showing a droplet cleaning a hydrophobic surface by rolling off http://lotus-shower.isunet.edu/the_lotus_effect.htm

  18. Self Cleaning Windows? Copying the nanostructures on a Lotus leaf, scientists and engineers have developed a bumpy glass that is self cleaning. Sprays have also been produced that coat almost any surface to keep it clean and dry http://www.physorg.com/news2730.html

  19. Let’s look a some examples of nanoscale nature http://semguy.com/gfx/eye.jpg

  20. http://www.ucmp.berkeley.edu/museum/profiles/hickman/images/sem.jpghttp://www.ucmp.berkeley.edu/museum/profiles/hickman/images/sem.jpg

  21. The horse chestnut leaf miner http://www.uochb.cas.cz/~natur/cameraria/sem-2.jpg

  22. http://www.loria.fr/~rougier/artwork/neuro/

  23. Denticles or placoid scales http://jeffreycarrier.net/?page_id=104

  24. http://www.prlog.org/10154998-sharklet-technologies-wins-early-stage-shootout-at-southeast-bios-investor-forum.htmlhttp://www.prlog.org/10154998-sharklet-technologies-wins-early-stage-shootout-at-southeast-bios-investor-forum.html

  25. This pattern improves shipping efficiency by reducing barnacle growth http://www.sciencelov.com/?p=3640

  26. http://www.aecom.yu.edu/aif/gallery/sem/sem.htm

  27. http://www.boston.com/bigpicture/2008/11/peering_into_the_micro_world.htmlhttp://www.boston.com/bigpicture/2008/11/peering_into_the_micro_world.html

  28. http://www.boston.com/bigpicture/2008/11/peering_into_the_micro_world.htmlhttp://www.boston.com/bigpicture/2008/11/peering_into_the_micro_world.html

  29. http://www.boston.com/bigpicture/2008/11/peering_into_the_micro_world.htmlhttp://www.boston.com/bigpicture/2008/11/peering_into_the_micro_world.html

  30. If we look closely at nature we might be able to solve almost any problem facing humankind… Think about this: You’re an inventor… How will you use Nanoscience & Nanotechnology in some new invention?

  31. Thanks to the following for their support and expertise:Dr. John MooreDr. Andrew GreenbergNational Science FoundationNSECUniversity of Wisconsin- MadisonInstitute for Chemical Education

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