Category Archives: Expand Your Knowledge

Ephyra Scientific Illustration Challenge

Become a Scientific Illustrator! Submit your drawings to so that we can share your [...]

Earth Hour Challenge

Connect with nature, your family, and the moon and stars by participating in the Earth [...]

Navigation: Date

The date indicates the season we’re in: spring (end of March to end of June), [...]

Navigation: GPS

Global Positioning Systems (GPS) have been around for sailors since 1990. It is the sailor’s [...]

Navigation: Bearings

While on board the Team O’Neill Catamaran, each group took a set of three bearings [...]

Navigation: Depth

One of the first and most valuable inventions in navigation was the lead line. In [...]

Navigation: Wind Speed

The movement of air from higher to lower pressure is the main cause of winds. [...]

Navigation: Weather Observation

Sailors are surrounded by an environment full of powerful elements, the skies above, the water [...]

Marine Biology: Plankton

Plankton are a very important part of our environment. Many of them are so small [...]

Marine Biology: Salinity

Salinity is the measurement of how salty the water is.You will probably find that salinity [...]

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