Ocean Floor Vocabulary

Ocean Floor Vocabulary

Multiple Choice

An opening on the ocean floor where minerial rich water escapes

• hydrothermal vent

• rift

• trench

• abyssal plain

Multiple Choice

A deep slope between a continental shelf and the sea floor

• Continental shelf

• Seamount

• Trench

• Continental Slope

Multiple Choice

A wide ocean mountain range with steep valleys at the center found in the Atlantic Ocean

• Continental Slope

• Sea Floor Spreading

• Mid Atlantic Ridge

• Abyssal Plain

Multiple Choice

New crust forms from lava pouring from rifts and spreads over the ocean floor

• Rifts

• Sea Floor Spreading

• Plate Tectonic Theory

• Hydrothermal Vent

Multiple Choice

Underwater mountains which number in the thousands formed as volcanoes

• Abyssal Plain

• Continental Shelf

• Trench

• Seamounts

Multiple Choice

An opening in the oceanic crust where magma escapes and makes new crust

• Hydrothermal Vent

• Rift

• Continental Ledge

• Seamount

Multiple Choice

Shallow underwater ledge found at the edge of a continent

• Continental Slope

• Abyssal Plain

• Continental Shelf

• Mid-Atlantic Ridge

Multiple Choice

Seafloor Spreading Theory is merged with Continental Drift Theory to explain structure of the crust and movements such as earthquakes, folds, and faults.

• Seafloor Spreading

• Mid-Atlantic Ridge

• Continental Slope

• Plate Tectonic Theory

Multiple Choice

The deepest part of the ocean found along the margins of continents

• Trench

• Abyssal Plain

• Rift

• Seamount

Multiple Choice

A large flat area on the ocean floor

• Trench

• Abyssal Plain

• Rift

• Continental Slope