Thinking by
Order-of-Magnitude

These resources take an order-of-magnitude perspective on the world. A good place to start is the zine which gives a brief introduction and overview of the main ideas.	Order-of-Magnitude Trivia The diameter of the earth ~ E7 m (source)
Zine	Order-of-Magnitude Quiz
US States Order-of-Magnitude Maps	Power and Energy power-and-energy.svg power-and-energy.png power-and-energy.ods Quiz
World Countries Order-of-Magnitude Maps	Computing and Data computing-and-data.svg comptuting-and-data.png comptuting-and-data.ods Quiz
The Hydrosphere oom-hydrosphere.svg oom-hydrosphere.png	The Solar System oom-solar-system.svg oom-solar-system.png