Sunday, January 31, 2010
Following the lotus effect investigation, one of my students wondered if Coco, our class gecko, also had super hydrophobic skin since water seemed to roll off of him whenever we sprayed the cage. Coco agreed to allow us to spray him with water and we found that his skin is super hydrophobic. It even maintained its super hydrophobicity after it was shed.
Monday, January 25, 2010
Wednesday, January 20, 2010
Insipirations from nature... Kids drawings. Thanks to Greta Zenner-Peterson for scanning all of these for us.
Tuesday, January 19, 2010
Monday, January 18, 2010
Disclaimer: no geckos were harmed in any of our experiments. He had some water sprayed on him and the skin he sheds has been studied under a microscope.
I just submitted my shot at the Toyota Tapestry Grant for Science teachers. I am looking to get funding for an after-school science club for next school year. I got a grant this past year from the Aristos Grant program in the Madison Metro School District for the science club that I am running this year, but so many really great ideas came from the kids this year, that I knew I would need more resources. So, I will keep my fingers firmly crossed.
Highlight text to find out what has been magnified 20X. Sandpaper
Thursday, January 14, 2010
In the fall of 2009 I lead an after school club. One of the investigations was looking at Super Hydrophobic surfaces. The students tested various leaves for super hydrophobicity. We have a list going of super hydrophobic leaves. We have Nasturtium, Elephant Ear, Brassica, and Cabbage. Feel free to add more that you have discovered.