The Ocean

The video tutorial explores the ocean's vastness, its interconnected nature, and its critical role in global climate regulation. It delves into the ocean's structure, salinity, and the unique ecosystems found in deep-sea environments, such as hydrothermal vents. The tutorial also highlights the ocean's geographical features, including major basins and continental shelves, and their rich resources. An interactive game reinforces key ocean vocabulary, making learning engaging and fun.

What percentage of the Earth's surface is covered by oceans?

• 50%

• 60%

• 70%

• 80%

Which of the following is NOT one of the four major ocean basins?

• Pacific

• Atlantic

• Mediterranean

• Indian

What is the average salinity of ocean water?

• 3.5%

• 4.5%

• 1.5%

• 2.5%

What is the average depth of the ocean?

• 2,500 meters

• 1,000 meters

• 3,688 meters

• 5,000 meters

What discovery changed the belief that deep ocean areas were devoid of life?

• Coral reefs

• Hydrothermal vents

• Underwater caves

• Sunken ships

Which of these creatures has been living on Earth for about 500 million years?

• Dinosaurs

• Jellyfish

• Whales

• Sharks

What percentage of the ocean is still unmapped and unexplored?

• 95%

• 85%

• 70%

• 50%

What is the mean elevation of the exposed land on Earth?

• 1,200 meters

• 500 meters

• 875 meters

• 1,500 meters

What is a continental shelf?

• A type of ocean current

• A type of ocean wave

• A storage area for marine life

• An extension of the continental land under the ocean

Which of the following resources is NOT typically found on continental shelves?

• Oil

• Diamonds

• Coal

• Natural gas