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

$10 - $20 per group Ages 11 - adult 5 to 10 minutes
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In this online game, learners must purchase power plants for their city.

free Ages 8 - 11 10 to 30 minutes
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In this activity, learners design a bungee jump for an egg using nylon stockings.

$1 - $5 per student Ages 6 - 11 30 to 45 minutes
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In this activity, learners use mirrors to write secret messages to a friend. Use this activity to explore letters, optics, and/or symmetry.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners make an equatorial sundial, which is simple to construct and teaches fundamental astronomical concepts. Learners use the provided template and a straw to build the sundial.

1 cent - $1 per group Ages 11 - 18 2 to 4 hours
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In this activity on page 7 of the PDF, learners investigate the solubility of gas in water at different temperatures. This experiment will help learners determine if temperature affects solubility.

$1 - $5 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore the concepts of structural engineering and how to measure the critical load, or the maximum weight a structure can bear.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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This quiz lets you estimate your annual radiation exposure.

free Ages 8 - 18 10 to 30 minutes
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In this activity, learners build handheld rockets and launchers out of PVC pipes and plastic bottles. Use this activity to demonstrate acceleration, air pressure, and Newton's Laws of Motion.

Over $20 per student Ages 6 - 18 1 to 2 hours
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In this activity (on page 12 of the PDF), learners make a sundial (shadow clock) appropriate for their geographic location in the northern hemisphere and use it to tell time.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity, learners explore the concept of force and how pulleys are used in everyday life to make work easier.

$10 - $20 per group Ages 8 - 11 1 to 2 hours
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In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners will observe a deceptively simple process: a burning candle.

$1 - $5 per group Ages 11 - 18 1 to 2 hours
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In this chemistry investigation, learners combine common cooking substances (flour, baking powder, sugar, salt, pepper, oil, water, food coloring) to explore mixtures.

$10 - $20 per student Ages 4 - 8 10 to 30 minutes
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In this quick SciGirls activity (page 1 of the PDF under SciGirls Activity: Doghouse Design), learners will be introduced to the concept of thermal conductivity.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners are challenged, using everyday objects, to create simple machines to complete specific tasks.

$5 - $10 per group Ages 6 - 14 45 to 60 minutes
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In this activity that can be used as a lab or demonstration, learners use Lactaid® and lactose to demonstrate the concept of enzyme action.

Over $20 per group Ages 14 - 18 10 to 30 minutes
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In this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most textbook

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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This activity puts a mathematical twist on the familiar “guessing jar.” No guesses allowed, estimates only.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes
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In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes