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    Museum of Science, Boston
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    In this activity, learners are challenged to design, build and test a birdhouse that will stay cool in the sun. Learners investigate concepts such as energy efficiency, properties of light, and...

    Over $20 per group Ages 8 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city. It can lead on to a discussion of minimal spanning tree algorithms for optimizing...

    1 cent - $1 per student Ages 8 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    In this outdoor activity, learners use pegs (like tent pegs) and string or elastic to simulate drill sites and roads in Northern Canada. Learners are challenged with figuring out how to connect the...

    $5 - $10 per group Ages 11 - 18 30 to 45 minutes
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    New York Hall of Science
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    Make a model city happier with LEDs, circuits, motors, and batteries! Groups can think, discuss, design, and build what would make a community happy. Kids can work as part of a team or on their own...

    $1 - $5 per student Ages 8 - adult 30 to 45 minutes
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    Science Museum of Minnesota
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    In this activity, learners create painting machines that can paint moving forwards and backwards. Learners construct the machines out of LEGOs, motors, a programmable PICO Cricket, and a cardboard...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    In this activity, learners conduct a simulation exercise related to public key encryption and try to intercept a message sent between two learners. This activity works with two learners but is most...

    free Ages 11 - 18 30 to 45 minutes
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    Sciencenter
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    Learners will build and experiment with their own windmills made from simple household materials. The program closes with a discussion on energy conservation and how our choices and actions can add...

    $10 - $20 per group Ages 6 - 14 30 to 45 minutes
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    Computer Science Unplugged
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    This activity about cryptographic techniques illustrates how to accomplish a simple, but nevertheless seemingly impossible task—making a fair, random choice by flipping a coin between two people...

    $1 - $5 per group Ages 8 - 18 30 to 45 minutes
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    Computer Science Unplugged
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    In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video. This is an...

    free Ages 6 - 18 30 to 45 minutes
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    WGBH
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    In this invention challenge activity, learners see how many objects they can grab with a homemade "bionic" arm. Learners will follow the design process to build a grabber that can reach...

    $1 - $5 per student Ages 8 - 14 30 to 45 minutes

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