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In this activity, learners act as water molecules and travel through parts of the water cycle to discover that it is more complex than just water moving from the ground to the atmosphere.

free Ages 6 - 14 30 to 45 minutes
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In this activity, learners build a Wilberforce Pendulum, a special coupled pendulum in which energy is transferred between two modes of vibration, longitudinal ("bounce') and torsional ("twist"), on a

$10 - $20 per group Ages 11 - 18 10 to 30 minutes
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In this game (on pages 14-21), learners explore how each human being inherits genetic traits such as eye color.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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This is an activity (located on page 3 of the PDF under Butterfly Wings Activity) about how visible light is affected by tiny nanoscale structures, producing iridescence on butterfly wings, soap bubbl

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners work in teams to investigate the composition of unseen materials using a variety of tools.

Over $20 per group Ages 8 - 14 30 to 45 minutes
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In this outdoor activity/field trip, learners conduct experiments to explore where dragonflies and damselflies perch or rest, and how the flies change behavior in reaction to other flies or fly decoys

$5 - $10 per group Ages 6 - 18 45 to 60 minutes
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In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.

Over $20 per group Ages 4 - 14 10 to 30 minutes
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Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners model how the Moon's volcanic period reshaped its earlier features.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners assemble large cubes to make nano-related images. Learners discover how different objects are related to nanoscience and nanotechnology.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this activity, pairs of learners model how scientists use craters to determine the ages of lunar surfaces. One partner keeps time while the other creates a painting for the other to interpret.

$10 - $20 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners make a photographic image—without a camera!

$5 - $10 per student Ages 6 - 18 30 to 45 minutes
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In this math game (Page 15 of the Dining Out! PDF), learners figure discounts and/or profit increases for various food totals. Learners add decimals to $100.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other marin

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light.

$10 - $20 per group Ages 8 - 18 30 to 45 minutes
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Computers are often used to put lists into some sort of order—for example, names into alphabetical order, appointments or e-mail by date, or items in numerical order.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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Learners work in pairs to create three simple types of bridges, a beam bridge, an arch bridge, and a suspension bridge.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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This lesson focuses on molecular motion in gases. Learners compare the mass of a basketball when it is deflated and after it has been inflated.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this physics activity, learners construct a small-scale version of a classic carnival game.

$5 - $10 per group Ages 11 - 18 10 to 30 minutes
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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.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes