University of Washington

In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation.

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

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

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

In this activity (4th activity on the page), learners use their sense of smell to rate and arrange containers filled with different dilutions of a scent (like cologne or fruit juice) in order from wea

In this activity, learners investigate the olfactory system by conducting several experiments.

In this simple exploratory activity (1st activity on the page), blindfolded learners try to identify mystery items by smell.

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

In this activity, learners calculate the width (horizontal diameter) of the blind spot on their retina. Learners make a blind spot tester using a piece of notebook paper.

In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.