|Icebergs are pieces of glaciers that have broken free. In contrast, sea ice is a thin, fragile, solid layer that forms in polar oceans. It forms a boundary between the relatively warm ocean and the cooler atmosphere, maintaining a delicate balance for algal communities that reside there. race journal|
Studying the Polar regions is a site sponsored by NASA and the Jet Propulsion Lab. While this site is a bit dated (created 1996) it has a great section (Cool Ice Facts-Be in the Know) on icebergs and sea ice. You'll find information on how sea ice forms, pictures of various ice formations, and why ice is studied. You'll also find further information on polar exploration at this site. Appropriate for grade levels 5-12, use the ice section in this site as a primer.
What is Sea Ice? This illustrated glossary contains a selection of commonly used sea ice terms. Sponsored by the Scientific Committee on Antarctic Research, you'll find out how to age ice, and how each type forms and acts. Learn about these ice terms-frazil, grease, and pancake-which sound like a breakfast gone bad, but are actually distinct types of ice. Appropriate for grade levels 7-12 and general audiences.
Revisit this site from NSF and Rice University, on Antarctica by going directly to the Ice section. Lots of great questions are posed on this site making it a handy homework assignment idea. A comprehensive web site covering a range of discussions with Antarctic ice as the topic. Appropriate for grade levels 7-12 and general audiences.
The National Snow and Ice Data Center has compiled a list of "Sea Ice in the News" among other ice topics in the news. Look here for articles for student reading assignments. Site also has links for further information on glaciers, icebergs, and sea ice. Lots of great images illustrating various types of polar ice. Appropriate for grade levels 9-12.
Canada is all too familiar with sea ice and ice bergs. Check out this site for fun facts on icebergs from Newfoundland. We've heard Bruce and other Vendee skippers mention "growlers" when talking about the dangers of sailing among icebergs. See what they're talking about at this Canadian Ice Service site. Appropriate for everyone.