Nature creates its own density column in marine systems, which is extremely important for the triggering of the spring bloom of phytoplankton. Phytoplankton are an important food source for all organisms- from microscopic zooplankton to large marine mammals such as walrus and whales. The different salinities (and therefore, different densities) of water help to stabilize the water column (by limiting
Students will sing a song and engage in an active game to learn more about ice algae and its role in the arctic ecosystem.
Objective
Students will learn about the arctic ecosystem, particularly the roles of ice algae, plankton, krill, fish, birds, seals, whales and polar bears through song and active participation.
Students will sing a song about the Bering Sea ocean ecosystem.
Objective
To sing a fun science-themed song!
Preparation
* Teach students about the Bering Sea ecosystem or have them review journal entries from Maggie Prevenas’ PolarTREC expedition (see Resources section for address).
* Hand out song sheet or project words onto a screen
Marine debris is primarily human-created trash found floating in the ocean. It can cause serious health problems for animals in a marine ecosystem. Students will gain first hand knowledge about the types of garbage found in the ocean by participating in a waste clean up tally.
Objective
Students will collect marine debris or land-based garbage in order
Students will engage in a hands-on activity to build their own plankton nets and help them understand how scientists use the nets to study changes in the ocean ecosystem.
Objective
Students will gain an understanding of how scientists use plankton nets and microscopes to study changes in the ocean ecosystem.
Students are asked to predict what will happen to styrofoam objects lowered down to the bottom of the Bering Sea. Students make the appropriate calculations related to the actual experiment which took place on Maggie Prevenas' PolarTREC expedition.
Objective
Students will make hypotheses and calculations regarding deep sea experiments that took place in the Bering Sea on