Tuesday, October 4, 2011
I'm particularly fond of the blues, purples and greens. The blue and purple pieces are crushed mussel shells. The green "spikes" are bristles from a sea urchin.
Along the same lines, retired science teacher Charles Lindgren has created the Science of Sand website. He has solicited sand samples from across the country and world and photographed the sand at a 9X magnification.
His samples are organized by state and country, and you're welcome to use the images for a virtual sand lab. In fact, he's also included some lesson ideas.
He's also always looking for new samples, so if you live or travel near sand, consider collecting a sample for him.
And take a look at his site - the pictures are gorgeous, much better than mine!