Curated OER
Secrets of the Ocean Realm - Survival in the Sea
Students determine the sequential links in a marine food chain and identify the roles that various organisms play in this chain. Students develop charts as visual aids for illustrating marine food chains.
NASA
Nasa Earth Observatory: Upper Crust
Learn how krill fight for survival as the sea ice melts and the population decreases. Discover how krill relate to our food chain and learn about their development.