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Measuring Your Breathing Frequency at Rest
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In this activity about the brain and sleep (on page 138 of the PDF), learners measure their resting breathing rates. Learners will discover that breathing frequencies vary amongst individuals.

Our Sense of Sight: Color Vision
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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

The Space Place
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In this activity (23rd on the page), learners conduct an experiment to examine memory and learning.

Now or Later: The "Recency/Primary" Effect
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In this activity (18th on the page), learners conduct an experiment to examine memory.

Exercise and Memory
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This activity (page 1 of the PDF under SciGirls Activity: Exercise and Memory) is a full inquiry investigation into the effects of exercise on short term memory.

How Quick Are Your Responses?
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In this activity (on page 134 of the PDF), learners explore reaction time.

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

Mirror-Tracing
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This mirror-tracing activity related to proprioception is a visual and motor test that involves learning a new motor skill.

Visualizing How the Vestibular System Works
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In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the

Altered Reality
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

Building a 3-D Space Maze: Escher Staircase
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In this activity (page 95 of the PDF), learners create Escher Staircase models similar to those that were used by Neurolab's Spatial Orientation Team to investigate the processing of information about

Our Sense of Sight: How We Perceive Movement, Depth and Illusions
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In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

How Long Can You Hold Your Breath?
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In this activity (on page 142 of the PDF), learners will compare breathing rates before and after hyperventilation to explore how reduced carbon dioxide levels in the blood lower the need to breathe.

The Ups and Downs of Body Temperature
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In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.

Raising the Level of Carbon Dioxide in Your Blood
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In this activity (on page 146 of the PDF), learners will explore the effects of increased carbon dioxide in the bloodstream.

Food for the Brain
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In this activity, learners dissect a piece of pizza to learn about nutrients important for health.

Changing Body Positions: How Does the Circulatory System Adjust?
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In this activity about how the body regulates blood pressure (page 117 of the PDF), learners make and compare measurements of heart rate and blood pressure from three body positions: sitting, standing

Investigating Sleep
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In this activity about sleep rhythms (on page 25 of the PDF), learners will investigate how changing the time they go to bed impacts their own sleep patterns.

Tasty Buds
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In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.

Half Full or Half Empty
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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.