Children look into microscopes and learn about stem-cell research at a hands-on exploration station as thousands families and visitors participate in Science Expeditions at the Wisconsin Institutes of Discovery (WID) at the University of Wisconsin-Madison on April 2, 2011. More than 50 stations were hosted at WID, the hub for the campus-wide science education outreach event. In addition, outings to more than a dozen satellite venues and museums around campus were served by frequent trolley rides departing from WID. (Photo by Jeff Miller/UW-Madison)

The UW–Madison Science Expeditions runs Friday through Sunday this weekend, April 6 – 8. This annual campus science open house is family-friendly, with activities for all ages. Please visit the Science Expeditions website for information about specific events and their locations/times.