From camouflage to placebo effects to mirages in the desert, the world is full of things that trick our brain. Zoey investigates the science behind the illusions û with help from twin scientists who make her think she’s seeing double. Big Idea in STEM: There is a lot of cool science that can fool our senses and trick our brains.

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MY GREAT CHALLENGE: Kid magicians compete to see who has the better illusion tricks. IN THE FIELD: Zoey visits a professional magician to understand how our eyes can deceive us.