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Discovery of Sound in the Sea

This in-depth site defines sound and describes its measurement, behavior in water, and importance to marine life and humans. Follow the Resources link for interactive lessons plans using audio data, plus reference materials. Extensive audio gallery includes examples of sound production by invertebrates, fishes, marine mammals. Human uses of underwater sound and the technology and applications of acoustic equipment are explained. The Career Gallery has profiles of researchers in physical oceanography, marine biology, engineering and other careers.

Bridge DATA - Diatomaceous Sediments: Ooze Clues

Just as ocean beaches display a variety of sand types, the ocean floor has different sediment types. Sediments can come from land, living organisms, chemical reactions in the water column, and even outer space. When skeletal remains of microscopic organisms make up more than 30% of the sediment, it is called "ooze." In this activity, students will plot the distribution of various oozes using information from sediment maps.

The Bridge's own DATA Series is made up of lesson plans (DATA Tips) on many ocean science topics that explore the world of water using the language of science: mathematics. Learn more about the DATA Series.

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