Materials for Each Group. 1  9-volt battery. 2  2 wires with alligator clips on both ends. 3  2 pencils sharpened at both ends. 4  Water. 5  Salt. 6  Clear plastic cup. 7  Tape.
Nubian people The Nubians are an ethnic group originally from northern Sudan, and southern Egypt. The Nubian people in Sudan inhabit the region between Wadi Halfa in the north and Al Dabbah in the south.
Debian is a free operating system for your computer and includes the basic set of programs and utilities that make your computer run along with many thousands of other packages. Debian has a reputation within the Linux community for being very high-quality, stable and scalable.