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a diagram showing the parts of an ocean wave
Photo

The Anatomy of a Wave

 A wave forms in a series of crests and troughs. The crests are the peak heights of...
Waves breaking on the shore
overview

Currents, Waves, and Tides

 Looking toward the sea from land, it may appear that the ocean is a stagnant place....
Two nurse sharks hover over a baited cage
Lesson Plan

Who Moved the Beach?

 Coastal erosion is a natural process that sweeps large sections of land out to sea....
Tue, 07/10/2018 - 13:22
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a large ship under a bridge
video

Ship Under a Bridge

 Ocean conditions change every hour of every day. Tides, currents, and winds are...
Fri, 01/14/2011 - 11:34
Horizontal bands of color represent different species of lichen that have adapted to the conditions at different heights above sea level.
Article

Seaside Lichens

 Very few plant species can survive close to the ocean, where pounding surf fills...
August 2015