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    New Jersey Department of Education
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    In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish. Learners observe their...

    $10 - $20 per group Ages 8 - 18 1 to 7 days
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    New Jersey Department of Education
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    In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem. Learners identify biotic (living) and abiotic (nonliving)...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes

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