These Pi's don't require ovens, just curiosity!

Kristen Railey is on a mission. She wants to help more girls become engineers and appreciate the wonders of engineering. But rather than simply joining the chorus lamenting that women are underrepresented in STEM fields, Railey is actually doing something about it. She’s created Girls Who Build.
Girls Who Build is a workshop in which high-school girls learn about engineering through things they use every day and then apply that knowledge to create new things on their own—all in a single day. It’s an exciting and fun experience for female students who may have very little exposure to engineering and who may not know any real engineers.
The workshop offers the opportunity for girls to get introduced to a variety of fields quickly: materials science, mechanical engineering, computer programming, and electrical engineering. Railey believes that a little familiarity with engineering concepts can foster both confidence and curiosity. The girls themselves see that working collaboratively on projects can lead to tangible accomplishments. And they get to know some successful and enthusiastic female engineers.
> Read the complete article

Not enough snow in your area? Then make your own! This video explains the science behind making snow (and disposable diapers).
There are also teaching notes for teachers who want to try the experiment with their class - just remember, safety first (see the warning notice at the top of the page)!