Hi Karen,
I am happy that your class is learning about the ocean and pullotion at the moment,because it is one think that we have to take care of them.Of course I am stiil in the environmental group.
You can see the documentary,A plastik ocean.I think that your teacher really like this documentary.
One of the best organisations to solve that problem is,the Ocean cleanup.If you want to donate with your classmates,you can go yo Ocean’s clean up website.
Excellent Savvas!!