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.
A Debian repository is a set of Debian binary or source packages organized in a special directory tree and with various infrastructure files - checksums, indices, signatures, ... - added. Client computers can connect to the repository to download and install the packages using an Apt-based package management tool.