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At 13:06 30/01/2007, Chris Sancomb wrote:
>We are redesigning a keystone arch activity that many of you are
>probably familiar with. Children build a 
>keystone arch out of five blocks that they then 
>can walk over. We had it made once, and the 
>blocks, although nice and met most of our 
>criteria were to soft and compress when a child 
>of around 50 pounds sits on them. I am looking 
>for other materials that will be lightweight 
>enough for small children to handle, soft enough 
>to not knock someone out when they sail across a 
>room, yet sturdy enough to work under 
>compression. Any suggestions would be helpful. Thanks

PLASTAZOTE® closed cell cross-linked polyethylene 
foam. Various degrees of hardness are available. 
Sheets come in various pale pastel colours. Can 
be layered-up and bonded together to make big, colour-banded blocks.


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Give people facts and you feed their minds for an hour.
Awaken curiosity and they feed their own minds for a lifetime.
*
Ian Russell 

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