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This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

In this activity related to the famous "Stroop Effect," learners explore how words influence what we see and how the brain handles "mixed messages." Learners read colored words and are asked to say th

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.

In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

In this activity (pages 26-29 of the PDF), learners investigate how they can develop super memories by using mnemonic devices.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

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

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.

In this activity (3rd on the page), learners investigate circadian rhythms by examining how well people do with estimating time.

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

In this activity (7th activity on the page), learners use their sense of touch to identify mystery objects hidden in socks.