Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: Ice Ages: Glaciers Advance and Retreat
Why have we had ice ages in the past? This resource explores the reasons why the earth's climate has repeatedly changed to create ice ages. A quiz is available to check your understanding.
Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: Deep Ocean Circulation
What causes the circulation of ocean waters that are too deep to be affected by wind? Find out how salinity and temperature drive the deep sea currents. This resource has several videos and an online quiz.