Scholastic
Study Jams! The Ocean Floor
Under the sea, the geography is as varied as it is on land! Young oceanographers find out about continental shelves, abyssal plains, seamounts, trenches, and mid-ocean ridges by viewing and reading the eight high-quality slides. Then...
Curated OER
Vocabulary for Earthquakes and Volcanoes
In this plate tectonics learning exercise, students define 27 terms associated with earthquakes and volcanoes such as subduction zone, mantle, and divergent plate.
First World War
Life in the Trenches
An engrossing narrative of the horrid day to day life amid rats and frogs and uncertainty in the trenches of World War I.
University of Oxford (UK)
U. Oxford: Virtual Seminars for Teaching Literature
Seminars, lesson plans, publications, pictures, and poetry make this a very useful resource for language arts or social studies lessons involving World War I and its poetry.
US Geological Survey
Usgs: How to Build a Model Illustrating Sea Floor Spreading
This is a comprehensive website featuring how to build a model that illustrates sea-floor spreading and subduction. It has diagrams and pictures reviewing major geological concepts.
NOAA
Noaa: Explorations
This resource page contains an exhaustive list of pictures and videos of sea floor structures found all over the world.
Institute of Marine Science
Forsea: If I Can't See It, How Do I Know It's There?
A diagram showing features of the seafloor and a laboratory experiment involving a model of the seafloor highlight this site. This is a good resource for teachers as well.
Extreme Science
Extreme Science: Challenger Deep
A short description of the world's deepest ocean trench. Includes diagram and map.
Other
Ocean Trenches
A rather detailed explanation of how trenches form and why. No graphics, but some interesting explanations as well as links to other sites and extensive reference list.
Other
University of California: Ocean Drilling Program
Scientists probe the ocean floor off Costa Rica and find evidence that may tell us more about what goes on in ocean trenches.
CK-12 Foundation
Ck 12: Plix: Bathymetric Evidence for Seafloor Spreading
[Free Registration/Login Required] A site where students can label the features of the ocean floor such as: mid-ocean ridge, rift, and more. Also on the site is a short quiz about the different topography of the ocean floor.
Wikimedia
Wikipedia: Pacific Ring of Fire
Wikipedia offers information on the location of the Pacific Ring of Fire, an area of frequent earthquakes and volcanic eruptions. Map included.
Wikimedia
Wikipedia: Oceanic Trench
Wikipedia provides brief information on oceanic trenches, and has a hyperlinked list of major world trenches.
Woods Hole Oceanographic Institution
Woods Hole Oceanographic Institute: What Are the Deepest Parts of the Ocean?
A brief description of the ocean's deepest parts.
ClassFlow
Class Flow: Tragedy of Trench Warfare
[Free Registration/Login Required] This flipchart provides an overview of weapons of WWI with special emphasis on the use of the trench.