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    In this activity (page 19 of the PDF) learners will create a soda bottle bioreactor by exploring the science of composting, comparing variables such as reactor design, moisture content, and...

    $10 - $20 per student Ages 8 - 14 1 to 12 months
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    In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis. Learners will experiment with different growing...

    $10 - $20 per group Ages 6 - 14 1 to 4 weeks
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    In this activity (page 13 of the PDF), learners discover how weathering and erosion change the Earth’s surface. By comparing sedimentary rocks subjected to various amounts of weathering, they will...

    $10 - $20 per group Ages 11 - 14 4 to 24 hours

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