- This is a sonar device that scans the seabed on either side. It is towed along by a surface ship.
- This is lowered to the sea bottom, where its nets collect samples of sea animals. It also carries a camera.
- This is another massive ridge system. It marks where two plates meet in the Pacific.
- By what interval does pressure increase by as you go deeper in the ocean?
- These surveyed the oceans, measuring surface temperature and wave height, picking out current patterns, and monitoring ocean pollution.
- The rocks of this layer of Earth are dense and solid.
- South of Australia, the seafloor drops away to form a deep basin, then gradually rises toward Antarctica.
- These are cracks in the Earth's crust caused by the movement of plates.
- The rocks of this layer of Earth are partly melted and flow like thick syrup.
- This trench, situated along the western coast of South America, is about 11,800 miles long.
- This contains the deepest point on Earth, the Challenger Deep, which plunges to 35,827ft.
- These are large mountains, usually formed by volcanic activity, which can rise steeply from the seafloor.
- Stretching over 1,700 miles, this ridge gets its name because it is situated on longitude 90 degrees east.
- Many of the Pacific Islands are made of these.
- Made of tiny volcanic islands. Filled with brightly colored fish, sharks, and coral. Off the northeast coast of Australia. Largest natural feature on Earth and is visible from space.
- One of the few island groups in the eastern Pacific. Six main islands which are inhabited by unique wildlife.
- This is part of a gigantic series of trenches stretching into the western Pacific.
- These occur where a large river deposits sediment in the sea at the edge of a continent.
- Twice the size of atlantic. covers 1/3 of the globe.
- 7 million years ago, this basin was cut off from the Atlantic Ocean and dried up. The age of rocks suggest that this has happened multiple times.