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In this activity, learners follow simple historical maritime recipes to cook up hardtack and swanky, and then compare the foods they eat to what was served on ships in the past.

$1 - $5 per group Ages 4 - 11 1 to 2 hours
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In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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When a lot of people share one network (such as cars using roads, or messages getting through the Internet), there is the possibility that competing processes will create a “deadlock," or an interrupt

1 cent - $1 per student Ages 8 - 14 45 to 60 minutes
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MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

free Ages 8 - 18 2 to 4 hours
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This activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed.

1 cent - $1 per group Ages 11 - adult 5 to 10 minutes
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Using simple materials, learners will construct the end effector (grasping device) of a robotic arm and use the device to capture and pick up an object.

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.

Over $20 per group Ages 8 - 18 1 to 2 hours
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Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity/demo, learners examine a synthetic gecko tape with micron sized hairs that mimics the behavior of the gecko foot.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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This game introduces learners to the scale of the greenhouse gas problem, plus technologies that already exist to dramatically reduce our carbon emissions and prevent climate change.

1 cent - $1 per group Ages 14 - adult 2 to 4 hours
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This lesson focuses on graphene and its electrical properties and applications.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

1 cent - $1 per student Ages 11 - 18 45 to 60 minutes
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In this activity, learners design and build a simple wind vane —one of the oldest kinds of weather tools— and use it to show wind direction.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners investigate the history and development of agricultural biotechnology.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.

$5 - $10 per student Ages 6 - 18 30 to 45 minutes
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In this activity, learners explore how spring scales work and how they are used for non-exact weight measurement.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how engineers work to solve the challenges of a society, such as delivering safe drinking water.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how engineers work in a team to solve problems.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how wind tunnels provide feedback to engineers about the performance and durability of products such as planes, cars, and buildings.

$10 - $20 per group Ages 11 - 18 1 to 2 hours