Which is the largest ocean on Earth?

Which ocean is the deepest?

Coral reefs are made by tiny organisms called:

Which ocean is located between Africa and Australia?

What do sharks rely on to detect movement in water?

Which ocean is the smallest?

Which ocean is also called the ‘Ring of Fire’ region due to volcanoes?

Which ocean lies to the west of India?

Which ocean surrounds the North Pole?

What is the largest living structure on Earth, visible from space?

Which ocean is located between the Americas and Europe/Africa?

What is the world’s longest mountain range, mostly underwater?

What is the deepest part of the world’s oceans?

What type of water do oceans contain?

Which group of animals includes whales and dolphins?