The SI (metric system) is easy to use! Learn everyday SI reference points
Learning the SI (International System of Units, commonly known as the metric system) requires developing just a few reference points - a general indicator you can use to orient yourself. Reference points help build that innate understanding of "how much." The metric system is a complete measurement system made up of 7 base units. Once you are familiar the SI basics you are ready to go! HINT: Learning the SI is not about making unit conversions in your head (this will only slow you down). Check out these resources to learn to "think metric"...
Scale of Things - Nanometers (U.S. Department of Energy). Check out this chart and discover the scale of things for super small natural and synthetic items from the nano world!
The Size of Nanoscale. (National Nanotechnology Initiative). These examples can help you understand just how small a nanometer is (one-billionth of a meter).
What is Nanoscale? (University of Wisconsin-Madison). Try out this activity to see how everyday objects compare to the nanoscale.
How the Nanoscale Measures Up (National Geographic Society). Hands-on activities help students explore the nanoscale and how it compares to the macro and micro scales. Incorporate mathematics and visual media.
How Small is Nano? (Video – NISE). What is a nanometer? What things are measured in nanometers? This video explores the macro, micro, and nano scale. Available in Spanish.