FerroFluids!! A magnetic liquid that we manipulated with a small magnet. I found todays experiments very interesting and fun. Though making it was a slow process, it had to be exact and done according to the directions like baking. One thing off and the whole experiment could go wrong. The time and patience was worth it though because in the end we got this black substance that moved where ever we put the magnet.
We had to decant it a few times to get as much water out while leaving the ions behind.
We also did photolithography. I really liked this one because it really mixed the two, science and art in one. It included chemical reactions and making a artistic design. I thought it was really neat that i could draw what ever i wanted on transparency sheet and that would be sketched into the chip. A very cool souvenir that really visually incorporates science and art.
http://www.youtube.com/watch?v=CJGBy_yygaQ
http://mrsec.wisc.edu/Edetc/nanolab/ffexp/index.html
http://www.slipperybrick.com/2006/08/ferrofluid-a-magnetic-liquid/
http://www.ece.gatech.edu/research/labs/vc/theory/photolith.html
http://www.micron.com/k12/semiconductors/photo