Space Sand

This kid loves science...and the color pink.

I picked up some Space Sand from U.S. Constructive Playthings for $3 and
we had a good 30 minutes of entertainment.

It was super cool.
You just fill a bowl with water...

and dump it in.

Space Sand is ordinary sand that has been exposed to the vapors of a silicon compound called trimethylhyroxysilane...making it unbondable with water.

It is similar to sand on Mars...
which really impressed this four year old.

Space Sand is being used in experiments covering the Mars Exploration...
as if this boy wasn't already in love with the stuff.