Eating is a complex process. Learn about how your mouth, esophagus, stomach and intestines work to make food digest. STEM Challenge: making enteric-coated tablets.
After a long civil war that decimated Gorongosa’s wildlife, the Mozambique government and the U.S.-based Carr Foundation have worked for two decades to restore the park’s wildlife to nearly pre-war levels.
Architects Brian and Jess team up with kids to find the "heart of the city," the center that cities grow around. Visit the streets of old Detroit to learn how cities change over time, and use maps and landmarks to find the heart of your city.