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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 make an optical illusion toy from the 1800s to explore persistence of vision.

Use this activity (10th on the page) to help learners explore memory and how sometimes your brain makes up its own memories. Learners will read and try to remember the words in list #1.

In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

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

In this activity, learners construct a device that allows them to view 2-D images in 3-D.

In this activity, learners construct a three-dimensional ambiguous cube to explore visual illusions and how our brains interpret or misinterpret information.

In this activity about depth perception, learners create an optical illusion in a shoe box.

In this activity, learners conduct the "Stroop Effect" test and explore what happens when they try to complete two simple tasks at the same time.

In this activity, learners discover that it's difficult to distinguish between two different shades of gray when they aren't separated by a boundary.

In this activity, learners estimate risks associated with different events and compare their estimates to the real possibilities.

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

In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see.

In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.

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.

In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

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