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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 environmental activity (page 16 of the PDF), learners will calculate the amount of energy they save by recycling paper, plastic, glass, and aluminum materials over the span of a week. This...

    free Ages 8 - 14 1 to 4 weeks
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    In this environmental science activity (page 3 of the PDF), leaners will identify and explain the causes of erosion. They will observe the effects of erosion on the surrounding area and further...

    Over $20 per group Ages 8 - 11 1 to 7 days
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    In this activity (page 5 of the PDF), learners will create a food web and explore food sources for different organisms. They will identify relationships between organisms in an ecosystem. Though...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes
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    In this activity about soil (page 7 of the PDF), learners will use their sense of touch as well as sight to understand how soil is classified based on texture and other details. They will compare...

    $5 - $10 per group Ages 8 - 11 4 to 24 hours
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    In this weather activity (page 4 of the PDF), learners will explore the water cycle through an interactive game. They will move among various stations representing areas within the water cycle, and...

    $10 - $20 per group Ages 6 - 14 45 to 60 minutes
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    In this ecology activity (page 8 of the PDF), learners explore how to filter contaminated water using a variety of materials. They discover that the water they drink goes through a long process to...

    $10 - $20 per group Ages 11 - 14 45 to 60 minutes
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    In this environmental education demonstration (page 6 of the PDF), learners will see a tangible representation of the scarcity of soil resources on earth. They will gain perspective on the ways in...

    $1 - $5 per group Ages 8 - 11 10 to 30 minutes
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    In this yummy biology activity (page 3 of the PDF), learners participate in a demonstration of natural selection. By using a bowl of candy as a "population," students discover how...

    $5 - $10 per group Ages 11 - 18 10 to 30 minutes

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