Mariana Trench quiz: How deep is your knowledge?

How much do you know about one of the most mysterious places on Earth?

3D background with part of surreal alien planet earth with stone rock mountain structure inside with scratched damaged rough surface and big gap between cliffs with neon azure blue light inside.
The Mariana Trench is the deepest known point of the ocean, plunging down further than the height of Mount Everest.
(Image credit: Philipp Tur/Getty Images)

The Mariana Trench (sometimes called Marianas Trench) is a mysterious and extremely deep oceanic trench. Plunging deeper than Mount Everest is tall and stretching five times longer than the Grand Canyon, the Mariana Trench is the deepest place on Earth (that we currently know of).

Despite advancements in technology and seabed mapping, a large part of the ocean floor remains unexplored. In fact, more people have been to the moon than to the bottom of the Mariana Trench.

Christina is a freelancer writer and editor from the UK. She has a degree in English Language and Literature with geography from the University of Keele, and a Masters in Publishing from Anglia Ruskin University. She covers everything from Lego sets and science kits through to laptops for students. If it helps you learn, she'll help you find it for cheaper.