vocabulary cards
DESCRIPTION
Introduction to Ocean Vocabulary for 4th gradeTRANSCRIPT
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Ocean Exploration Vocabulary
Unit C, Chapter 3
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Continental Shelf• The shallow part
of the ocean at the edge of the continents
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Continental Slope• The edge of the
continental shelf that extends steeply downward to the ocean floor.
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Ocean Basin• The floor of
the deep ocean
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Trench
• A deep, narrow valley in the ocean floor
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Ridge
• The highest part of a chain of underwater mountains.
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Current
• A river like flow water in the ocean.
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Tide• The rise and fall
of the surface level of the ocean.
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Wave
• The up-and-down movement of ocean water caused by the wind.
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Light Zone
• The sunlit waters of the ocean
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Dark Zone• The ocean
water where sunlight does not reach.
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Coral Reef
• A platform or ridge of coral at or near the ocean surface.