General Knowledge
How much of our planet is covered by oceans?
71% b. 68% c. 47% d. 82%
1. 71%
A long, narrow indentation in the ocean floor. They can be very deep.
Deep sea trench
The topmost 200 meters of the ocean
Sunlit Zone
This zone has some sunlight but not very bright, and is about 800 meters in depth.
What unique geographic features can be found in the midnight zone?
hydrothermal vents
What is the largest ocean?
a. Southern b. Atlantic c. Pacific d. Arctic
c. Pacific
A mountain in the sea
Seamount
This coral reef in Australia supports many diverse marine animals
The force that pushes you when you're under water
Water pressure
How do deep sea creatures depend on hydrothermal vents?
They use the nutrients and heat they create
Describe the difference between oceans and seas.
Seas are partially enclosed by land, oceans are not.
Where the continental shelf ends. It slopes down to the ocean floor.
Continental slope
This microscopic creature lives in the sunlit zone of every ocean, and plays an important role in creating the oxygen we breathe.
Phytoplankton
What is a photophore?
An organ in an animal that creates light
These two words mean "to go down" and "to go up"
Ascend (to go up)
What is the deepest known part of the planet called?
Mariana Trench/Challenger Deep
The part of the sea we swim in. The part before it drops down to the deeper ocean.
Continental Shelf
What percentage of the ocean’s total lifeforms live in the sunlit zone?
1. About 30% b. About 57%
c. About 70% d. About 90%
d. About 90%
Why can’t humans dive into the twilight zone without special equipment? (2 reasons)
The water pressure is too high and can kill you, and it is very cold.
How do angler fish catch prey?
They lure other fish with a glowing light at the end of a spine attached to their chin.
Name the 5 oceans of the world
Atlantic, Arctic, Indian, Pacific, Southern
The deepest part of the ocean floor. The deep sea plain.
Abyssal Plain
How does camouflage help animals survive?
It can help them hide from predators.
The deepest zone of the ocean where no light reaches.
The midnight zone
Name the 7 continents
Africa, Antarctica, Asia, Australia(Oceania), Europe, North America, South America