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In this activity (1st on the page), learners find their blind spot--the area on the retina without receptors that respond to light.

In this activity (26th on the page), learners construct an easy-to-build device and test motor learning.

In this activity, learners explore how their depth perception would be affected if they only had one eye. Learners work in pairs and attempt to drop a penny in a cup with one eye covered.

In this activity (3rd on the page), learners conduct a series of tests to find out which of their eyes is more dominant.

Are fingers the only place on the body where we use our sense of touch? In this activity (6th activity on the page), learners test the touch sensitivity of different parts of the body.

In this activity (4th on the page), learners conduct a series of tests to find out which of their ears is more dominant.

In this fun optics activity, learners explore principles of light, reflection (mirrors), and perception. Learners work in pairs and sit on opposite sides of a "two-way" mirror.

In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.

In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.

In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.

These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.

In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

In this activity (1st on the page), learners conduct a series of tests to find out which of their hands is more dominant. In other words, are they right-handed or left-handed?

In this activity (18th on the page), learners conduct an experiment to examine memory.

In this activity (on page 134 of the PDF), learners explore reaction time.

In this activity, learners play a series of simple games to investigate navigation without visual and sound cues.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

In this activity (page 37 of the PDF), learners observe, on a prepared slide, muscle and spinal cord cells from a rat.

In this activity (3rd on the page), learners investigate circadian rhythms by examining how well people do with estimating time.