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    University of Wisconsin-Madison
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    In this investigation, learners plant seeds in a 2-liter bottle filled with soil that is connected to a water source below. Over the next few weeks, learners observe how the plants grow. The...

    $1 - $5 per student Ages 4 - 14 1 to 4 weeks
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    American Community Gardening Association
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    In this field trip, learners visit a community garden, take a tour, and interview the gardener. In-depth lesson plans include guidelines for how to prepare for the trip, from logistics to...

    $1 - $5 per group Ages 8 - 18 4 to 24 hours
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    Lawrence Hall of Science
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    In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter. Then...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners use artificial bees and paper models of flowers to find out how bees transfer pollen from one flower to another. Background information discusses bees and other...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor, mystery-solving activity, learners work like detectives, gathering evidence to identify the culprits that are attacking plants. Learners come to understand the impact of insect...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    APSnet
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    In this activity related to plant biotechnology, learners use the tissue culture process to rapidly produce clones (genetic copies) of a particular plant (cauliflower, rose cuttings, African violet...

    Over $20 per group Ages 11 - 18 1 to 12 months
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    University of Wisconsin-Madison
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    In this activity, learners turn empty 2-liter bottles into a see-through compost container. Through the sides of the bottle, learners make weekly observations of decomposition over the course of...

    $1 - $5 per student Ages 4 - 14 1 to 12 months