TED Talks
Ted: Ted Ed: How to Visualize One Part Per Million
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 it's hard to conceptualize really large numbers, it can be difficult to wrap our brains...
Other
Oregon State University: Parts Per Million
This site gives a good comparison of parts per million, as well as conversions.
Sophia Learning
Sophia: Parts Per Million: Lesson 3
This unit introduces parts per million as a unit of concentration. This lesson is 3 of 3 in the series titled "Parts per Million."
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Global Change: Where Land, Air and Water Meet
To develop an understanding of parts per million as a concept, teams of learners create successive dilutions of a solution to reach a parts-per-million concentration.
Sophia Learning
Sophia: Parts Per Million Calculations
Learn how to figure parts per million calculations in this short, guided lesson.
Frostburg State University
Frostburg State University: Grams of Solution
Resource presents the answer to "How do I find grams of solute in a volume of solution, given parts per million?" in an easy-to-understand format.
Texas A&M University
Calculating Parts Per Million
Calculating parts per million for use in greenhouses.
Sophia Learning
Sophia: Parts Per Million: Lesson 1
This unit introduces parts per million as a unit of concentration. This lesson is 1 of 3 in the series titled "Parts per Million."