Newton Biography at MacTutor http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Newton.html

Wolfram biography http://scienceworld.wolfram.com/biography/Newton.html

"If I have been able to see further, it was only because I stood on the shoulders of giants."  Letter to Robert Hooke

Newton's epitaph: "Who, by vigor of mind almost divine, the motions and figures of the planets, the paths of comets, and the tides of the seas first demonstrated."

"I know not what I appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell, whilest the great ocean of truth lay all undiscovered before me." Quoted in D Brewster, Memoirs of Newton

"Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things."

CyberChase Function game for approx. Gr. 3-5 - MONSTER FROG FUNCTION MACHINE : http://pbskids.org/cyberchase/parentsteachers/lessons/lessonplans/lesson12.html

The most comprehensive and accessible resource for younger kids I have seen that explains the ideas of calculus in comprehensible terms is Don Cohen's Calculus by and for Young People The website can be a bit difficult to navigate, but there are excellent resources here. Sample problems can be found here:
http://www.mathman.biz/html/chapters.html

Examples of how children have used the lessons in original work are found here:
http://www.mathman.biz/html/discover.html

Puzzles and activities for all ages that relate to calculus ideas are found here:
http://www.mathman.biz/html/puzzles.html

This is a site that contains many teacher support videos. This link has several videos that describe what a function is, and functions are fundamental to calculus and physics. 
http://www.learner.org/resources/series66.html

Function machine game - from simple to more complex http://www.amblesideprimary.com/ambleweb/mentalmaths/functionmachines.html

The Science Spot Physics Lessons for Kids http://www.sciencespot.net/Pages/classphys.html

NASA Site for Newton's Laws of Motion http://www.grc.nasa.gov/WWW/K-12/airplane/newton.html

Zoom Astronomy Enchanted Learning http://www.enchantedlearning.com/subjects/astronomy/glossary/Newton.shtml

This is a very good site for Newton's physics developed for elementary / middle school: http://www.can-do.com/uci/ssi2001/newtonsphysicsnb.html

Sir Isaac Newton and His Laws Activities http://www.caosclub.org/members/caosho9.html

Light, Prisms, & the Rainbow http://www.molecularexpressions.com/optics/activities/teachers/prisms.html

1,2,3,Isaac Newton & Me (HS Level) http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Science/Physics/PHS0033.html

Newton Quiz on Laws of Motion http://www.quia.com/jq/19675.html

Newton's “Cradle” - Did you know that those toys of colliding balls were invented by Newton? A picture can be found here: http://www.lhup.edu/~dsimanek/scenario/cradle.htm

Soccer on the Moon - What would happen if you played soccer on the moon? http://www.glenbrook.k12.il.us/gbssci/phys/projects/frig/fbbyjcar/soccer.html

Famous for inventing calculus along with Leibniz.

Author of The Principia, the most important scientific work ever written.