Glossary of Terms

An area that provides food, water, and living space to a plant or animal.
A plant which grows in water with a high salt content.
An area such as a beach, reef or sea cave where various marine animals (including seals and sea lions) congregate out of the water.
Hawaiian Islands
An archipelago in the Pacific Ocean consisting of eight major islands, several atolls, islets and underwater seamounts. The northernmost formation is Green Island and the southernmost is the island of Hawaii. The entire archipelago is considered the U.S. state of Hawaii. The archipelago used to be known as the “Sandwich Islands.”
Haystack Rock
1. A term generally applied to many of the basalt formations appearing off the coast of Oregon. Formed by prehistoric lava flows, these rugged formations are more resistant to erosion than many other types of stone. As a result, the rain and waves have slowly cut many of them into domed shapes, similar to a haystack. See also Sea Stacks. 2. A large basalt monolith visible just offshore at Cannon Beach, Ecola State Park, Oregon. It is the third largest such monolith in the world, measuring 235 feet (72 meters) in height.
(Sometimes simply referred to as a head) A point of high land that juts into a large body of water, such as a lake or ocean.
A tributary stream forming the source of a river.
A non-woody seed-bearing plant that dies down to the ground after producing flowers.
The organic component of soil created through the decomposition of plant material by microorganisms.
Hydrologic Cycle
Also known as the water cycle, this is the global process by which water moves over and under the Earth’s surface through the combine forces of evaporation, condensation, precipitation, filtration, runoff and flow.

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