Mister C and the Science Crew build a barometer to measure air pressure.
Related Lessons
Saguaro National Park receives about 10 inches of rain a year, but has some of the highest biodiversity in North American. Learn how plants and animals are adapted to a hot and dry environment.
Ranger Cam Juarez shares how environmental justice can hit close to home and the work he does to educate the public and engage his community.
Ranger Jordan Camp talks gila monsters and Chris shares a cool citizen science project.