This topic, from the Association for Science Education, allows classes in schools across the world to explore and exchange information about the applications of photovoltaic devices. The version of the topic that can be downloaded here is a trial version and is provided only in English. This resource was edited by...

This activity from Science upd8 is linked to the subject of the universe which seems just too perfect! Everything about it seems tailor-made to make sure humans would evolve.

Could an advanced civilization have "fixed it" for us? Some top scientists think it's a serious possibility. In this discussion...

This Science upd8 resource examines what proof there is that mobile telephones are harmful. Policy makers usually follow the precautionary principle. They issue warnings at the first hint of danger. Should we take their advice? In this discussion activity, students judge the risks and the strength of the evidence...

These NASA materials describe hands-on science and engineering challenges for students, using space exploration as an engaging context. The activities are related to NASA's Lunar Reconnaissance Orbiter and NASA's Lunar Crater Observation and Sensing Satellite missions. Students design and build: *an air-powered...