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In this activity, learners play a trick on their own brain to see if the brain can learn to ignore distracting input. Colors and words are used to play the visual trick, known as a Stroop Test.

In this activity, learners discover a brain process called habituation.

In this activity, learners experiment with the Stroop Effect by challenging themselves and others to try and read a list of colors as quickly and accurately as possible, with a twist.

In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.

We don't normally view people upside down and so our brains aren't accustomed to it.

This is a quick and simple demonstration about reflexes (second activity on the page).

In this activity (7th activity on the page), learners use their sense of touch to identify mystery objects hidden in socks.

In this optics activity, learners build an animation tool to make mini movies. When you spin a phenakistascope, the pictures move so quickly that your eyes and brain can't separate the images.

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

Educator Amy O'Donnell from the American Museum of Natural History guides learners to create a diorama of a coral reef.

Which one of your eyes are dominant? Do they act independently or are they equally "in control?" This activity explores how your eyes work (or don't work) together.

This perception trick focuses on conflicting information to the brain...instead of trying to see two images, you're trying to get a bright spot by overlapping the image you see through two tubes.

In this activity, learners discover that it is difficult to trace a curve by using its reflection in a mirror. Use this activity to discuss how the brain works.

This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?

Known as the waterfall effect, this activity demonstrates adaptation in our visual system.

In this activity (15th activity on the page) about the sense of touch, learners use glue and cardboard to construct a maze they use with their eyes closed.

In this activity (3rd activity on the page), learners taste test different foods and categorize them as sweet, bitter, sour, or salty. Learners compare their results with the group.

In this online game, learners practice memory recall. They are shown a collage of pictures for two minutes, then have to write down everything they remember and check how they did.

In this game (4th activity on the page) about hearing, learners test their ability to identify various sounds without looking.

In this quick activity/demonstration (5th on the page), learners explore depth perception.