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by 3 users
Optical Illusions and Visual Phenomena 
For SchoolRooms Middle School; also 794 Fun and Games
http://www.michaelbach.de/ot/
first added by ujwala, last updated 4 months 6 days ago
by 1 users
The Exploratory - Illusions
For SchoolRooms Middle School; also 794 Fun and Games
http://www.exploratory.org.uk/illusions/flash/index.htm
first added by kejti, last updated 4 months 6 days ago
by 1 users
Sandlot Science - Illusion
For SchoolRooms Middle School; 794 Fun and Games
http://www.sandlotscience.com/Illusion_Jump_Main/Master
_Jump.htm
first added by kejti, last updated 4 months 6 days ago
_Jump.htm