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Public Key Encryption: Kid Krypto
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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.
Sound Representation: Modems 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.
Sustainable Fishing
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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.
Nano Latch-n-Catch
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In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.
Touch Down
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In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.
The Muddy City: Minimal Spanning Trees
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In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city.
Cryptographic Protocols: The Peruvian Coin Flip
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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 who d
Water Motor
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In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.
Shaking It!
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In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.