This document assigns 8 groups research topics related to ocean productivity, water pollution, and heavy metals. Topics include why seawater is salty, how high ocean temperatures affect productivity, how nutrients influence productivity, why nitrite is less useful than nitrate to aquatic organisms, how bauxite mining causes arsenic pollution in rivers in Pahang, how Minamata disease occurred in Iraq, how ammonia pollution affected water supply in Klang Valley, and how heavy metals can kill fish in aquaculture ponds.