Tsunamis, giant waves caused by underwater earthquakes, speed across the ocean at...
Fri, 01/14/2011 - 12:16
Endangered Ocean Animals
The Endangered Species Act (ESA) was signed into law on December 28, 1973 by...
Mon, 12/02/2013 - 14:00
An American crocodile (Crocodylus acutus) resting on a bed of seagrass. These...
Fish spears and fish weirs—fish traps placed in rivers—are traditional ways of...
Wave Size and Depth
Students investigate the relationship between the size of the wave and depth to...
Fri, 01/29/2010 - 09:52