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The Model Neuron
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In this activity, learners create a model of a neuron by using colored clay or play dough. Learners use diagrams to build the model and then label the parts on a piece of paper.

Chemical Breath
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This is a chemistry lab activity about solutions (page 7 of the PDF). Learners see firsthand how chemicals in a solution can combine to form an entirely different substance.

Our Sense of Sight: Eye Anatomy and Function
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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

Pulse of Life: Measure Your Pulse
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In this activity, learners take their own pulse and explore how heart rate is affected by various activities.

Magnification vs. Resolution: Can you see the flag on the Moon?
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This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.

Clam Hooping
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In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.

A Stand-up Egg
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In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.

See the Light
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

Designer Seeds
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In this activity, learners will examine a variety of seeds, describe them, and determine how they are dispersed.

Size and Distance
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In this activity about depth perception, learners create an optical illusion in a shoe box.

Chilean Sea Bass: Off the Menu
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In this data analysis activity, learners use data collected by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) to study Chilean sea bass populations.

Don't Be Nerve-ous
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In this activity, learners discover a brain process called habituation.

Fish Wheels
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In this activity, learners cut out and assemble wheels to explore how variations in fish body structures (mouth shape/position/teeth, body shape, tail shape, and coloration patterns) allow fish to sur

Antibody Builder
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Learners use Duplo bricks to build antibodies with shapes that match model viruses.

Test Density with a Supersaturated Solution
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Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.

Macro-Microarray
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In this activity, learners explore the "nuts and bolts" of gene chips.

Plankton Feeding
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This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

Hanford at the Half-Life Radiation Calculator
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This quiz lets you estimate your annual radiation exposure.

Moldy Jell-O
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In this laboratory activity, learners design an experiment to evaluate how environmental factors influence the growth of molds.

Styrofoam Traps
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In this activity, learners use Styrofoam to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope.