Here is a lab activity where teens experience the respiratory system first-hand as they dissect lungs and identify key structures within the system. Although the website is written in British English with some slightly different verbiage...

Young scholars examine the overall strategy pursued by the Allies in the final moths of World War II in Europe by examining military documents and consulting an interactive map of the European theater.

In this interactive general knowledge worksheet, students complete 24 multiple choice questions based on their knowledge in several subject areas. These subjects include science, geography, sports and music.