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    Pratt School of Engineering, Duke University
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    Learners design and create musical instruments from common objects; their challenge is to create an instrument that can make three different tones. They investigate how energy is transferred from...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this design challenge activity, learners build a four-stringed instrument that can play a tune. This lesson plan includes information on sound energy and pitch and the design process, as well as...

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes
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    PBS
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    In this math lesson, learners apply the Monte Carlo method of simulation to determine a reasonable estimate. Learners are introduced to the problem of determining a reasonable number of packs of...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    Science Friday
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    In this activity, learners explore how an electromagnet works by making a simple one. Using this knowledge, learners design a diagram to make a working speaker using household materials. Then...

    $10 - $20 per group Ages 11 - 14 45 to 60 minutes
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    NISE Network
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    In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed. Learners investigate the history of piezoelectricity, how it's used, and...

    Over $20 per group Ages 4 - adult 10 to 30 minutes
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    Center for Engineering and Computing Education, University of South Carolina
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    Learners build a simple electromagnet, then use this electromagnet to transform a yogurt container into a working speaker. They can connect their speaker to a radio and listen as it transmits sound...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    WGBH
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    In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear. This lesson plan includes information...

    $5 - $10 per student Ages 8 - 14 45 to 60 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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    Oregon Museum of Science and Industry
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    This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air. Learners take part in several...

    $1 - $5 per group Ages 4 - 18 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel. Use this activity to introduce learners to musical instruments,...

    $1 - $5 per student Ages 6 - 18 1 to 2 hours

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