Mad scientist Bill Nye CELLebrates the basic unit that makes up all living organisms-the cell. This exCELLent program zooms in on DNA and creatures like amoebas and paramecium. The DVD has extra features: fully indexed "chapters" correlated to national science standards, interactive glossaries and quizzes, bonus footage of never-before-seen segments, interviews and demos, Spanish translation, and on-disk implementation guide. .