How to visualize one part per million Kim Preshoff + The TED Ed Community

View full lesson: Parts per million is a scientific unit of measurement that counts the number of units of one substance per one million units of another. But because its hard to conceptualize really large numbers, it can be difficult to wrap our brains around what one part per million really means. Kim Preshoff (with help from 100+ animators from the TEDEd Community) shares nine helpful ways to visualize it. Lesson by Kim Preshoff, animation by TEDEd Community.