Re: [ISTA-talk]ideas please

[mcorp]

Some students at our school built a roller coaster using foam pipe insulation
for the track and a marble for the "car".  They cut the foam insulation
lengthwise, so one section of foam insulation served as two lengths of track.
This is the kind of insulation one would fit around water pipes to prevent them
from freezing, so one side is already cut for you.  The foam material is
similar to the kind found in those "fun noodles" kids use in swimming pools.
They duct taped the sections together and the foam material was very flexible
so 360 degree loops, etc. could be created.  They demonstrated this at our
annual Science Carnival.
Hope this helps.
Margie :)

Barbara Sandage wrote:

>  I am a physics teacher who would like the kids build a simple roller
> coaster using a ball as the cart.  Does anyone have any suggestions about
> what to use as a track?  It would have to be flexible and cheap.  I did see
> one idea about using cardboard and taping on sides, but I am looking for
> something different.
> Thanks
>
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