Handout
Wikimedia

Wikipedia: Rudolf Clausius

For Students 9th - 10th
This site from the Encyclopedia Wikipedia provides brief biographical information on German physicist and mathematician Rudolf Clausius including an image, hyperlinked terms, and external links.
Activity
Wolfram Research

Wolfram Science World: Rontgen, Wilhelm

For Students 9th - 10th
This site from ScienceWorld provides a very short biographical sketch of Wilhelm Rontgen (1845-1923 CE) and describes his most notable scientific discoveries and contributions.