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This laboratory activity helps learners understand the concept of biological succession by simulating the process in a microenvironment with various protozoans.

Over $20 per group Ages 14 - 18 1 to 12 months
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Learners take a field trip along a local body of water and conduct a visual survey to discover information about local land use and water quality.

$10 - $20 per group Ages 11 - 18 1 to 2 hours
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This activity helps the learner answer the question: "What environmental problems arise due to animal and human overpopulation and what might need to be done to combat these problems?" Learners play a

$1 - $5 per group Ages 14 - 18 1 to 7 days