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    Twin Cities Public Television
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    This activity (located on page 4 of the PDF) is a full inquiry investigation into testing a repair material. Groups of learners perform “first aid” on a cut orange, which represents propeller...

    $5 - $10 per group Ages 8 - 14 1 to 7 days
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    American Association for the Advancement of Science
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    In this online simulation, learners use antibiotics to cure patients with bacterial infections. When learners use an antibiotic to treat the infection, sometimes the bacteria mutates so stronger...

    free Ages 8 - 11 5 to 10 minutes