Stare at the center of the colored version, then wait for it to change to black and white.
Free word puzzles. I used to love these as a kid. Great critical thinking activity!
Funny Optical Illusions Eye Tricks | Optical Illusions: Give Your Eyes (and Brain) Some Exercise
We have rounded up some mind-bending optical illusions that are designed to confuse you.
This is so cool! Similar to changing the direction of Rei's spinning in the Evangelion ending.
Quotes and Cool Stuff
WHAT SORCERY IS THIS?! I scrolled fast and then went back up and did it slow so I could check to see if they weren't all purple:)
love optical illusions...
Anything and Everything
Rainbow In the Sky Optical Illusion - http://www.moillusions.com/rainbow-sky-optical-illusion/
Afterimage Optical Illusions
Rebuses are optical illusions that use pictures to represent words or parts of words. Can your child solve these rebuses?
Parents: 6th-8th Grade Printables
Optical illusions..holy crap it works!! i had to lean way up to my computer screen to do it but it is so cool!! #illusions