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Learners take on the role of environmental engineers as they design water filters.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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Water treatment on a large scale enables the supply of clean drinking water to communities.

$5 - $10 per group Ages 11 - adult 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.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes