Sites

ScienceWidener.edu: Scientific Notation (Popularity: )
http://science.widener.edu/svb/tutorial/scinot.html
exercise drills for the mathematical necessity.

NYU.edu: Scientific Notation (Popularity: )
http://www.nyu.edu/pages/mathmol/textbook/scinot.html
curious about the 0.000,000,000,753 kg. mass of a dust particle? Practice notation with sample problems.

University of Winnipeg: Scientific Notation (Popularity: )
http://theory.uwinnipeg.ca/physics/intro/node4.html
features a table illustrating the power, prefix, and abbreviation of metric units.

University of Toronto: Scientific Notation (Popularity: )
http://www.math.toronto.edu/mathnet/questionCorner/scinot.html
explanation of how the notation makes everyday life simpler.

UMD.edu: Scientific Notation (Popularity: )
http://janus.astro.umd.edu/astro/scinote/
offers a program to practice converting between scientific notation and normal numbers.

IEER Technical Classroom: Scientific Notation (Popularity: )
http://www.ieer.org/clssroom/scinote.html
Andromeda Galaxy contains at least 200,000,000,000 stars. Now that's a lot of zeros!