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Date: | Tue, 23 Sep 2008 14:47:12 -0700 |
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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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Hi Mary,
I have a pretty good one about how to find the center of gravity of
an odd-shaped flat object. You can use Masonite and cut it into odd
shapes and paint the pieces with chalkboard paint. Drill some holes
along the edges of the shapes in various places. Hang a weight from
a string with a hook above it. Then hang the shape on the hook and
draw a line where the shape meets the string. Turn the shape and
hang it from a different hole. Make another chalk line that
intersects the first. You can do it a third time. If you put a
dowel where all the lines intersect, you should be able to balance
the shape on the dowel. Be sure to have people erase their lines so
someone else can try it.
Good luck!
Anna
On Sep 23, 2008, at 1:28 PM, Mary Catherine Campbell wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> **********************************************************************
> *******
>
> 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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__________________________________
Anna Grace
Exhibit Coordinator
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Our mission: "We engage people in science experiences that touch all
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Explorit Science Center
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Visit Explorit today! Enjoy the "Move It! Science in Action"
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Challenge Center on the second floor. For a listing of events at both
sites, check out our calendar at http://www.explorit.org/calendar.html.
Think It. Try It. Explorit.
===========
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
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To remove your e-mail address from the ISEN-ASTC-L list, send the
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