Cute Peanuts cartoon
Source: https://www.blendspace.com/lessons/xYDdwpZoNyHSUg/tiny-timescales-movies-of-electrons
Step by step directions
Source: youtube
Ladder Method
Source: Youtube
Source: http://www.sciencespot.net/Media/metriccnvsn2.pdf
Use this site to convert metrically
Source: http://www.worldwidemetric.com/measurements.html
quiz on metric conversions
Source: http://quizlet.com/127830/metric-conversions-flash-cards/