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Corner Reflector
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In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.

Parasite Sleuth
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In this activity (on pages 26-33), learners play parasitologists, solving several "mysteries" about people who got sick from various parasites. In teams of four, each member solves one mystery.

DNA Fingerprinting
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In this forensics activity, learners solve a mystery using “DNA” taken from the scene of the crime.

Disappearing Statues
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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.

Bird in the Cage
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.

Endurance: How Many Can You Do in a Row?
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Combine math and exercise with this activity. Learners count how many times in a row they can skip rope or throw and catch a ball.

Camera Projector
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In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.

Convection Current
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In this activity, learners make their own heat waves in an aquarium.

Snug as a Bug
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In this outdoor activity, learners make models of homes that might protect small animals from the elements, then search living plants for real structures made by small animals.

A Degrading Experience
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In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

Mapping Greenhouse Gas Emissions Where You Live
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In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

Sniffing for a Billionth
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This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

Making Vocal Cords
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In this activity, learners imitate the way vocal cords work by building a model from a plastic cup, rubber band, and a straw.

Soil Density
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In this activity, learners will test soil content using their sample, some water and a container that seals.

Pickle-oh!: Musical Pickle Instrument
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What's a Pickle-Oh? Two pieces of pickle on a stick are connected to a Pico Cricket (micro controller). When you slide the pickles apart the note changes.

Lighting Up Celery Stalks
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In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla

Biobarcodes: Antibodies and Nanosensors
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In this activity/demo, learners investigate biobarcodes, a nanomedical technology that allows for massively parallel testing that can assist with disease diagnosis.

Pom Pom Potential
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In this kinesthetic activity, learners move pom-pom "ions" across a membrane to simulate how an action potential is propagated along an axon.

Scent Tracking
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In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

Self-Portrait Silhouettes: Activity 2
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In this activity, learners make a photographic image—without a camera!