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How Fast Are You?
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This activity is designed to let learners measure their reaction time or response time to something they see.

Spots, Lines and Lasers
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Learners shine the light of a laser pointer through sheets of fabric that all have a different number of threads per inch.

Sizing Up Temperature
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In this activity, learners explore Charles' Law in a syringe.

How Thick is Your Hair?
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In this activity on page 13 of the PDF, learners use a laser pointer (with known wavelength of light) to measure the thickness of a human hair.

Demonstrating An Epidemic
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This experiment allows learners to experience a small scale "epidemic," demonstrating the ease with which disease organisms are spread, and enables learners to determine the originator of the "epidemi
Simple Submarine
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Using simple, inexpensive items, learners build and test submarine models.

Size, Scale and Models
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In this activity, learners take measurements and create charts to learn about the size of dinosaurs and their relative scale to humans.

Sea Turtle First Aid Investigation
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This activity (located on page 4 of the PDF under GPS: Sea Turtles Activity) is a full inquiry investigation into testing a repair material.

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.

Chromatography
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In this chemistry activity, learners will separate a mixture of FD&C dyes (colors certified and allowed by the US for the Food, Pharmaceutical, Cosmetics & Personal Care industry) to practice

Can Nutrients in Water Cause Harm?
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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

Sugar Crystal Challenge
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This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.

What is a Nanometer?
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This lesson focuses on how to measure at the nanoscale and provides learners with an understanding how small a nanometer really is.

Lungometer
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In this environmental health activity, learners investigate their own vital lung capacities.

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

Measuring Blood Pressure in Space
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In this activity (page 105 of the PDF), learners measure heart rate and blood pressure and learn how to obtain consistent measurements during repeated tests.

What Cells Can I See in Muscle and Spinal Cord Tissues?
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In this activity (page 37 of the PDF), learners observe, on a prepared slide, muscle and spinal cord cells from a rat.

What's So Special about Water: Surface Tension
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In this three-part activity, learners play a game and conduct two simple experiments to explore water and surface tension. Learners will have fun discovering how water "sticks" together.
Sodium Acetate Hand Warmers
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In this activity, sodium acetate hand warmers are used to introduce learners to supersaturated solutions, crystallization, and exothermic reactions.

How Greenhouse Gases Absorb Heat
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Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.