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

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.

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 examine their tongue and taste buds.

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