Pringles under pressure

Pringles under pressure

The students from Paulo Freire’s Downtown and University campuses are at SkySchool this week.

On the first day, we got to see a baby horned lizard on our hike near SkySchool campus at the summit of Mount Lemmon. We also spent ten minutes of silence on the mountain just observing the sounds.

We noticed that when we traveled from Tucson (3000’ elevation) to the summit of Mount Lemmon (9000’ elevation), a Pringles container expanded, and the lid domed up! We talked about why. The air pressure got lower as we went up the mountain, and the pressure inside the container stayed the same.


We respectfully acknowledge the University of Arizona is on the land and territories of Indigenous peoples. Today, Arizona is home to 22 federally recognized tribes, with Tucson being home to the O’odham and the Yaqui. Committed to diversity and inclusion, the University strives to build sustainable relationships with sovereign Native Nations and Indigenous communities through education offerings, partnerships, and community service.