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Keystone
Weekly This week's Key Points:
*Site Visit Journal Update,* *Share at NSTA,* and *Awesome
Science!*
Site Visit Journal
Update It's been a little while, but we have an exciting site visit to share with you! Peek inside Marjorie Trapp's classroom (at Finletter Elementary in the School District of Philadelphia) as she and her second graders investigate the relationship between balance and weight. This is Marjorie's first experience with STC's Balancing and Weighing kit, and it proves to be a stimulating and fun experience for her and her students. Click on the link above, and take a look for yourself.
There is currently a call for presentations for the National Science Teachers Association's (NSTA) national conference, which will be held in Philadelphia on March 27-30, 2003. This is a great opportunity for Pennsylvania science educators at all levels to participate and to present content and projects. Session proposal forms are online at http://www.nsta.org/sessions. Click on the "Online session proposal form" button at the top. The submission deadline is April 15, 2002.
Awesome Science! Imagine never having to worry about tooth decay ever again. Scientists at the University of Florida in Gainesville are promoting a genetically modified bacterium that may enable you to do just that. These researchers have tweaked a strain of bacteria (one that ordinarily lives in your mouth) that secretes a toxin that kills the bacteria that cause tooth decay. With one swish of the rinse containing the modified bacteria, they would be established and go to work on the decay-causing bacteria. Occasionally, one would need to chew a special gum or use mouthwash to provide the bacteria with the nutritional supplement that they need to survive and continue to fend off decay. Not surprisingly, some people have concerns about introducing a genetically modified microbe into the body. And brushing and flossing would still be required for the sake of healthy gums and good breath. Read more details about this possible treatment at the link above.
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| The Franklin Institute gratefully acknowledges the generous support of the National Science Foundation and Unisys Corporation. | |||
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The Franklin Institute is the Demonstration Site for the
Eisenhower
Mid-Atlantic Consortium, providing science and math
resources for teachers.
This material is based upon work supported by the National Science Foundation under Grant No. 9819641. © 2003. All rights reserved.
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