Manmade Disasters / Minamata DiseaseAs the investigation into the disease continued it was discovered that animals were also experiencing similar symptoms. Cats with the disease were labeled as having 'cat dance disease'.
Science / DensityA brick has tightly packed atoms and molecules with a lot of mass, making it high density and heavy. In comparison Styrofoam has loosely packed atoms (and lots of air and holes), and not much mass so it is low density and light.