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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

free Ages 4 - adult 10 to 30 minutes
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In this activity, learners build one or more edible coral polyps and place them together to form a colony.

$10 - $20 per group Ages 8 - 11 30 to 45 minutes
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In this activity, learners will first learn the basics of galaxy classification and grouping.

free Ages 14 - 18 30 to 45 minutes
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Learners will understand the relationship between climate change and sea-level rise.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners use a compass, powerful magnet, and copper magnet wire to build a special generator known as a dynamo.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners will engineer three different parachutes to test how well each one works.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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In this activity, learners use a model for how fishing affects marine life populations, and will construct explanations for one of the reasons why fish populations are declining.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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This activity shows how our experience of the Sun changes with time and location. The sun dagger at Chaco Canyon is thought by many to be a sort of ancient timekeeping device.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners construct a simple air pressure launcher for paper rockets.

$10 - $20 per group Ages 4 - 14 1 to 2 hours
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In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting.

$5 - $10 per group Ages 8 - 14 2 to 4 hours
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In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

$1 - $5 per group Ages 4 - 11 1 to 2 hours
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In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households.

free Ages 6 - 11 45 to 60 minutes
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In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this 6-7 day investigation, learners begin with an introduction to seamounts that are present in the Gulf of Alaska.

$5 - $10 per group Ages 11 - 14 1 to 7 days
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In this activity, learners will build ramps and test how the laws of physics apply do different objects. Learners will explore physics and cause and effect through this activity.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

$10 - $20 per group Ages 8 - 18 1 to 7 days