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    In this activity (page 7 of the PDF), learners will investigate the contents of owl pellets. Learners will discover how owls digest their food as well as the kind of animals they eat. Although this...

    $5 - $10 per student Ages 8 - 14 30 to 45 minutes
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    In this Energy and Environment activity (page 9 of the PDF), learners calculate the mass of a piece of gum, compare it to the mass of the gum's packaging, and then create a bar graph of the...

    $5 - $10 per group Ages 8 - 14 30 to 45 minutes
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    In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer. Learners will explore the concept of barometric...

    $1 - $5 per student Ages 11 - 18 1 to 7 days
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    In this geology activity (page 6 of the PDF), learners explore how carbonic acid can slowly dissolve limestone and form caves. They see firsthand that the carbonation in soda has the same effect in...

    $1 - $5 per group Ages 11 - 14 10 to 30 minutes
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    In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life. Learners will explore how...

    $1 - $5 per group Ages 6 - 14 4 to 24 hours
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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 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 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 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 activity (page 11 of PDF), learners compare the air pressure within a dark and a light bottle both heated by the sun, and discover that solar energy can be collected and stored in many ways...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes