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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.

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

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

In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

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

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

This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).

In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.

This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this activity, learners solidify their conceptualization of cells by building a model of a cell in a ziplock bag.

In this activity, learners investigate color vision as well as plan and conduct their own experiments.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.