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Science Unit C Ch 3

Vocabulary Chapter 3

estuary A place where a freshwater environment and a saltwater environment meet.
continental shelf The gently sloping part of a continent that is under water and rings each continent.
continental slope The edge of a continent that drops steeply down to the deep-ocean floor.
abyssal plain The vast floor of the deep oceans.
mid-ocean ridge The place where plates of the Earth's crust along the ocean floor are being split apart and molten rock pushes up to form new ocean floor and a mountain range.
trench A place where two plates of the Earth's crust hit each other, forming a deep part of the ocean.
seamount A steep-sided volcanic mountain under the ocean.
atoll A ring of islands around a shallow central lagoon.
intertidal zone The area between the high-tide mark and the low-tide mark.
coral reef A structure built by living creatures.
Created by: mquay