xoxoxoBruce • Apr 19, 2009 10:59 pm
Discover has a series of pictures of beach sand.
The variation in shape and color are amazing by themselves, but Discover also describes how the different grains were created, where and what from.

I was not surprised that some sand comes from rock, but some comes from sea critters and some from pollution. :eek6:
The variation in shape and color are amazing by themselves, but Discover also describes how the different grains were created, where and what from.

I was not surprised that some sand comes from rock, but some comes from sea critters and some from pollution. :eek6: