Palm Beach Maritime Academy teacher Steven Allen slogging in the Everglades. Each year he takes his seventh- and eighth-grade students on an experiential learning trek to experience first-hand the effects agricultural and residential run-off has on Florida's waters. Students analyze water samples, measuring nitrates and pH levels as markers for pollutants. Image courtesy of Exploring the Submerged New World 2011 Expedition, NOAA-OER.
Sign up for the Ocean Explorer E-mail Update List.