Geography:
How North America got its shape - Peter J. Haproff
The most lightning-struck place on Earth - Graeme Anderson
Why is Mount Everest so tall? - Michele Koppes
What happens when continents collide? - Juan D. Carrillo
The colossal consequences of supervolcanoes - Alex Gendler
China so extraordinary - Megan Campisi and Pen-Pen Chen
How much of human history is on the bottom of the ocean? - Peter Campbell
How Magellan circumnavigated the globe - Ewandro Magalhaes
The missing plague that could have changed history
History through the eyes of the potato - Leo Bear-McGuinness
What makes the Great Wall of China so extraordinary - Megan Campisi and Pen-Pen Chen
The history of museums - J. V. Maranto
Civics:
Democracy - A short introduction
What are the universal human rights? - Benedetta Berti
What does it mean to be a refugee? - Benedetta Berti and Evelien Borgman
How do US Supreme Court justices get appointed? - Peter Paccone
Why do Americans vote on Tuesdays? - Jacob Soboroff
How is power divided in the United States government? - Belinda Stutzman