Very hot sulfur-rich waters coming from volcanic vents in the ocean floor crystallize into chimneys called black smokers. Scientists overcame many challenges to bring a few up, so they could study their formation and the odd things living there.

Chronicles the journey of a research team led by University of Delaware marine scientist Craig Cary that set sail from San Diego, California. Includes features on seafloor geology and ocean creatures.

Test what you know about sea life and learn about undersea research. Includes an introduction to marine careers, as well as coloring pages and an online puzzle.

Smithsonian online exhibit that explores the ocean, marine life, underwater volcanoes, and the deep sea.

Learn amazing facts about marine life and find out what the difference is between an ocean and a sea.

Sea stories, encyclopedia on creatures of the deep, and frequently asked questions.

An interactive exercise that demonstrates how to measure the clarity of the water and light penetration.

A literature based unit about the ocean. Includes based lesson plans, interactive games, puzzles and quizzes, print activities, and experiments. Read or dive for a treasure hunt.

A Grade 2 class presents lots of photographs and descriptions of the sea and its creatures, including turtles, whales, fish and sharks.