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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 sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.