Students will gain an understanding of the complex problem of micro plastics in the ocean and how it affects the marine food web. How does human use of plastics affect the marine food web? What are micro plastics? How do micro plastics affect the health of phytoplankton? Phytoplankton are an essential organism in our world’s aquatic ecosystems as they are the foundation of ocean and freshwater webs of life. Micro-plastics are flooding into our watersheds and oceans at alarming rates. In some areas of the ocean, there are more micro-plastics then there are phytoplankton. Fish mistake the micro-plastics for phytoplankton, eating them and introducing plastic pollution at the base of the aquatic food web. Larger and larger fish and mammals are being found with alarming amounts of plastic in their digestive tracks as more plastic finds it’s way into our waterways.