Bulk email

I am doing a science fair project on the levels of bateira in bulk foods compared to the levels in their packaged equvilents. I was wondering were i can get bactiria test kits or what materials i need.

i need to buy a bulk ybco high temperature superconductor for a project. i am making a train that floats. the superconductor needs to be at least 10mm thick and i cant spend over $200. it should be about 20-30mm across. any answers would be greatly appreciated.