Science 8:  We began the day going over the Hawaiian Island and how the volcanoes are formed over a hotspot in the mantle.   We watched this animation showing a divergent plate boundary, which explains mid ocean ridges, underwater volcanoes, and rift valleys.  We watched this clip on convergent boundaries, showing how coastal mountains and inland volcanic belts are formed.  This one shows an oceanic -oceanic convergence, explaining deep ocean trenches and volcanic island arcs (Philippines, Indonesia, Japan).  In the second half we viewed Williamson's Lake water, and we drew specimens of phytoplankton, zooplankton, and multicellular invertebrates.