PBS National Video Game Challenge
http://pbskids.org/stemchallenge/#about

Siemens We Can Change the World Challenge
http://www.wecanchange.com/
 
Intel
http://www.intel.com/about/corporateresponsibility/education/k12/STEMUnits.htm
 
Kid’s Science Challenge (One of My Favorites!)
http://www.kidsciencechallenge.com/
 
Competitions
http://www.sciencenewsforkids.org/about-ssp-educational-competitions/
 
3m’s Young Scientist Challenge 
http://www.youngscientistchallenge.com/12challenge/index.html

Exploravision
http://www.exploravision.org/
 
Do Something Awards
http://www.dosomething.org/awards
More Info Here: http://www.dosomething.org/
 
Doodle for  Google
http://www.google.com/doodle4google/

TONS of Challenges
http://www.instructables.com/contest/
 
Google Science Fair
http://www.google.com/events/sciencefair/educators.html
 
Amazing Challenges from Best Buy and Ellen (By Kids For Kids) – Can’t Wait to See What’s Next
http://www.bkfk.com/programs
 
Puzzle Contest
http://www.johnrausch.com/DesignCompetition/
 
K’Nex
http://www.knex.com/club/knexpert_vote.php
 
Lego Robotics
http://www.legoeducation.us/eng/competitions/

Rubberband Contest
http://rubberbandcontest.org/inventions.php
 
ThinkQuest
http://www.thinkquest.org/competition/
 
Wouldn’t It Be Cool If…
http://www.wouldntitbecoolif.com/

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