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    The Exploratorium
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    In this activity on page 3 of the PDF, learners visualize the relative size and structural differences between microbes that have the potential to cause disease. Learners work in groups and use...

    $10 - $20 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners create virus models, including nucleic acid and proteins, using simple materials. This resource includes information about virus structure and gene therapy.

    1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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    The Exploratorium
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    In this activity, learners play a game that models what happens as stem cells differentiate into different cell types. As learners play, they'll discover that a wide variety of cells can arise...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners explore the "nuts and bolts" of gene chips. Learners construct a simple model of a DNA microarray (also known as gene chips) and learn how microarrays can be...

    $1 - $5 per student Ages 14 - 18 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes. During the first round, they calculate the average distance the planes fly and...

    $1 - $5 per group Ages 8 - 18 45 to 60 minutes
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    The Exploratorium
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    In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye. Learners will be surprised to...

    free Ages 8 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners construct a cereal chain as a model of how proteins are made in the cell. Learners build their chain off of an initial template which represents a single copy of DNA and...

    1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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    In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes. Learners use simple materials to assemble a comb (electrophoresis chamber) to...

    Over $20 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition. This activity...

    $1 - $5 per group Ages 11 - 18 1 to 7 days