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In this neuroscience activity, learners conduct a simulation to demonstrate how multiple incoming signals influence the action of neurons.

In this activity, learners estimate risks associated with different events and compare their estimates to the real possibilities.

In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

In this activity, learners will explore how the human brain interprets environmental stimuli.

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 dissect a piece of pizza to learn about nutrients important for health.

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

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