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Two ideas:
1. Have kids build a mobile, which has to be balanced to hang straight. I
think Jay Newlin at the Science Museum of Minnesota designed a nice mobile
creation kit as part of his Workbench project. Not sure if the point was to
illustrate the center of gravity etc.
2. When I was young, I had a balance; you could hang numbers on either
side. The numbers weighed in proportion to their value (i.e., 2 weighed twice as
much as 1). So to make the balance even, the numbers on each side had to
add up to the same amount. Maybe you can still find the toy, but if the
concept sounds good, it would not be difficult to design something like this.
Bob
Robert L. Russell, Ph.D.
Science Advisor, Self-Reliance Foundation
Project Director, Celebra la Ciencia & ConCiencia/Hispanic Science Newswire
(202) 360-4117 (office) (202) 997-5539 (cell)
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_www.celebralaciencia.org_ (http://www.celebralaciencia.org/)
_www.selfreliancefoundation.org_ (http://www.selfreliancefoundation.org/)
1126 16th St. NW, Suite 350
Washington, DC 20036
In a message dated 9/23/2008 4:38:50 P.M. Eastern Daylight Time,
[log in to unmask] writes:
ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related
institutions.
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I need help in teaching center of gravity / balance concepts to
elementary students. I'm looking for ways to demonstrate finding the
CoG as well as ways that students can display the concept. Any activity
ideas or background information would be greatly appreciated.
Mary Catherine Campbell
Home School Connections Coordinator
Educational Services Coordinator
PHONE: 602-716-2000 ext 2556 | FAX: 602-716-2088
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P Before printing this e-mail think if it is necessary. Think Green!
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