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In this activity, learners work together to create a life-sized drawing of the human nervous system.

In this outdoor activity, learners play a game of Tag to discover how neurons attach themselves to each other to form a chain.

In this activity, learners make a stroboscope--a spinning disk with slits around the edge that you look through.

This activity is designed to let learners measure their reaction time or response time to something they see.

This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen.

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

This is a quick and simple demonstration about reflexes (second activity on the page).