Curated OER
The Ocean Floor
Practice reading comprehension by approaching oceanography through 2 pages of informational text. The text compares the ocean floor to the Grand Canyon to gives students perspective, and gives a brief coverage of the earth's crust and...
University of California
University of California, Santa Barbara/abyssal Hills
This article, published in Nature magazine, gives a detailed account of the abyssal plain feature called abyssal hills.
CK-12 Foundation
Ck 12: Earth Science: Bathymetric Evidence for Seafloor Spreading
[Free Registration/Login may be required to access all resource tools.] Describes features of the seafloor and how they are mapped by echo sounding. It touches upon the continental margin as well.