Instruction 1-2
Nucleus, Mitochondria, Chloroplasts
Students', Parents' and Teachers' Links
http://en.wikipedia.org/wiki/Cell_nucleus
http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm
http://www.biology4kids.com (A site designed to teach cell biology to "everyone.")
http://www.eurekascience.com/ICanDoThat/bacteria_cells.htm (A "guided tour of cells" conducted by fictional characters with names like Chloe Chloroplast. The information is good, although some may find the site a bit whimsical. The title of the site is "Bacterial Cells," but all cells are covered.)
http://www.eurekascience.com/ICanDoThat/dna_intro.htm (An introduction to DNA by the same authors as the previous web site -- excellent but whimsical.)