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    Agriculturalists have long considered mushroom growing a challenge, largely because you need a piece of benchtop equipment known as a laminar flow hood. In this activity, learners make their own ...

    Over $20 per group Ages 11 - adult 1 to 4 weeks
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    In this activity, learners build a "pneumatic trough," a laboratory apparatus used for collecting pure gas samples over water. After building this device, learners can put it to use and...

    $10 - $20 per student Ages 14 - adult 30 to 45 minutes