Educator Materials Graphing Analysis of Algae and Oysters: Comparing Historic to Modern Day Levels Students graph the oyster and floating algae to sea floor algae ratio levels, and analyze their results on a worksheet. Educator Materials Videos and Seafood Consumption Choices Students watch two videos about ocean ecosystems, and discuss seafood choices. Educator Materials Browse by Topic: Eutrophication   Educator Materials Summary of Activity Worksheet Students summarize what they learned from analyzing historic and present day food webs and data on historic and present day oyster... Educator Materials Browse by Topic: Over-harvesting   Educator Materials Browse by Type: Data Analysis   Educator Materials Browse by Type: Worksheets   Educator Materials The Chesapeake Bay Today With Large-scale Fishing Students analyze the food web of today’s Chesapeake Bay with large-scale fishing. Educator Materials Climate Change Find out why Earth's climate is changing and what you can do about it. Educator Materials Chesapeake Bay Disrupted Food Webs: Exploring the relationship between overfishing and dead zones in the Chesapeake Bay. Educator Materials Einstein Web List Where to begin when a Web search turns up millions of sites about Einstein? Let us point you to some of the best—from Time's person... Video Ask a Scientist About Climate Change and Marine Life A marine biologist answers kids' questions about how climate change affects life in the ocean.