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Western PA School
Take a tour of Fern Hollow Creek in Pittsburgh, PA by meeting a drop of water and a macroinvertebrate and learn about why it's so important to keep our creeks and parks clean and healthy.
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Take a tour of Fern Hollow Creek in Pittsburgh, PA by meeting a drop of water and a macroinvertebrate and learn about why it's so important to keep our creeks and parks clean and healthy.