There's a very cool slideshow on the Discovery Channel site in recognition of Earth Day 2009. The collection of photos that make up the "On Earth Day, a Bird's-Eye View" slideshow are beautifully done and are accompanied by explanatory text that highlight the impact of climate change -- from dust storms to floods to volcanic eruptions and earthquakes. The imagery is amazing - and certainly good for classroom sharing.
Geodesic dome math project: A model dome like this can be made in any size (as long as you figure out the relative lengths of the struts). This one is pretty big!
Born on May 15, 1863: Frank Hornby, an inventor whose "toys" included Meccano, an engineering construction set of nuts, bolts, and strips of sheet metal. Hornby first devised the system for his children. When he moved on to mass produce...
Christina Ren, a high school junior and founder of Science Alliance Network believes student-to-student mentorship is key to keeping young kids excited about science.
