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In this activity, learners work in teams to study the observation skills essential to scientific research.

In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

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

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

This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

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

In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

In this lab, learners experience how dolphins and other echolocating animals use their senses to locate and identify objects without using their sense of sight.

In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.