Features of the Ocean Floor

How does the ocean floor compare to land features?

• The ocean floor has no features.
• The ocean floor has features similar to land.
• The ocean floor is always flat.
• The ocean floor is only made of sand.

What is the continental shelf?

• A steep drop-off from the ocean surface
• A shallow area of the ocean that extends from the coast
• A flat area of the ocean floor
• A deep ocean valley

If you were to draw a map of the ocean floor, what feature would you include to show a steep drop?

• A flat abyssal plain
• A mid-ocean ridge
• An ocean trench
• A continental slope

What is the main difference between the continental slope and the mid-ocean ridge?

• The slope is a steep drop-off, while the ridge is a long mountain range.
• The slope is found near the equator, while the ridge is found near the poles.
• The slope is flat, while the ridge is steep.
• The slope is underwater, while the ridge is above water.

Which feature of the ocean floor is known for being flat and deep?

• Ocean trench
• Abyssal plain
• Mid-ocean ridge
• Continental slope

Which of the following statements about ocean trenches is true?

• They are the shallowest parts of the ocean.
• They are the deepest parts of the ocean.
• They are flat areas of the ocean floor.
• They are formed by volcanic activity.

What is the purpose of a topographic map?

• To show the types of fish in the ocean
• To represent the shape of the land and ocean floor
• To show the locations of cities
• To indicate weather patterns

How do contour lines on a topographic map help us understand the ocean floor?

• They represent the types of fish in the ocean
• They mark the locations of shipwrecks
• They indicate the steepness or flatness of an area
• They show the temperature of the water

What do latitude lines tell us?

• How far north or south a place is from the Equator
• The temperature of the ocean water
• How far east or west a place is from the Prime Meridian
• The depth of the ocean at a specific location

If you wanted to find a specific location on Earth, which two lines would you use?

• Latitude and temperature
• Longitude and depth
• Longitude and latitude
• Latitude and altitude