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

In this activity, learners use household materials to investigate and explore their ability to smell an odor.

In this math lesson, learners compare products to determine the best product.

In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.