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In this activity, learners use their sense of smell to explore the world on the nanoscale.

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

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

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

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

In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.

In this activity, learners investigate the sense of hearing and plan 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.

In this outdoor activity, learners measure familiar objects in nature to practice working with the metric system.

This assortment of mathematical games can be played while traveling.

In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

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, learners will build the highest tower they can out of recycled materials.

In this activity, learners will keep track of how much they can do in one minute. Instructors can pick something everyone will do for a minute, such as jumping up and down or drawing stars.

In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

This fun hands-on astronomy activity lets learners explore models of the Milky Way and other galaxies to get a sense of relative distances to other galaxies.

Historically, sea floor mapping (bathymetry) was done by soundings.

In this activity (on pages 16-21), learners get a sense of geological time by understanding how big a million is.

Build time sense into the schedule by asking learners to predict what can happen in a certain amount of time: We have 20 minutes before outdoor time. What can you get done?

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).