Ocean
Ocean Zone
Twilight Zone Life
100

Largest ocean in the world?

The Pacific Ocean is the largest ocean.

100

When divided into 3 zones, this is the middle zone of the ocean.

The Twilight Zone.

100

Lots of plant life lives in the Twilight zone. (true or false)

False. Because there is so little light very little plant life can live in the twilight zone.

200

What is a Mariner?

A Sailor.

200

The Twilight zone of the Ocean is almost completely unexplored. (True or false)

True. The Twilight Zone is the most unexplored zone of the ocean. It's even less explored than the ocean floor.

200

What is the largest animal migration on earth?

The large number of ocean creatures that make their way from the deep twilight zone to the surface for food every single night, and then back down to the depths before the sun is up.

300

The Indian Ocean is the smallest ocean in the world. (True or False)

False. The Artic Ocean is the smallest ocean in the world. It is also the coldest.

300

Why is it called the twilight zone?

This zone is so deep that very little light from the sun reaches it so it is very dark. However, because a little light does filter down, it is not pitch black like the midnight zone.

300

Is there very much animal life in the Twilight zone? Name two.

Yes, there are a lot of deep water creatures in the twilight zone. Perhaps more than all the others.

400

Marine Biology is the study of life in the ocean. (True/false)

True.

400

How deep is the Twilight zone?

200 - 1000 meters or 650 - 3300 feet.

400

What term is used to describe the light produced by living organisms. Many sea creatures in the twilight zone have this cool feature. How is it useful?

Bioluminescence.