Across
- 1. Hollywood director becomes the first person to perform a solo dive to the bottom of the Mariana Trench, the deepest point in the ocean.
- 3. Scalding hot water pouring from these vents enriches the water with nutrients and provides food for bacteria and a host of other organisms. This discovery rocks the scientific community because, for the first time, an ecosystem has been found that thrives without the energy of the Sun.
- 6. American geologist Marie Tharp discovers a rift valley extending over 40,000 nautical miles (64,373 kilometres) along the ocean floor. This discovery provides evidence for the newly formed theory of __________ drift, known today as plate tectonics.
Down
- 2. This trench is so deep that if you could put Mount Everest on the ocean floor, its summit would lie about a mile below the ocean surface.
- 4. Dr. Robert Ballard, with the help of a tiny robotic submarine named _____, discovers the wreck of the Titanic.
- 5. A Japanese expedition and film crew captures the first video of a live giant _____ in its natural environment.