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    Make
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    In this activity, learners take apart a used zinc-carbon dry cell battery. Besides making for an interesting lesson in electrochemistry, taking apart a spent D-cell also allows learners to salvage...

    $1 - $5 per student Ages 11 - adult 45 to 60 minutes
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    New York Hall of Science
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    In this hands-on activity, learners discover the similarities and differences between a vertebrate and invertebrate by dissecting a perch and a crawfish. This can be a very rich and time consuming ...

    $5 - $10 per group Ages 8 - 18 30 to 45 minutes
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    NSBRI
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    In this activity about the heart (on page 22 of the PDF), learners examine sheep or chicken hearts to learn about the heart's structure and the flow of blood through the heart. Learners will...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes