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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.

This neuroscience activity introduces learners to how messages are sent and received by neurons. Learners use modeling clay and pipe cleaners to build model neurons.

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

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