Deep Sea and Ocean Zones
Because sunlight cannot reach it.
Why is the deep sea dark?
To help them see in the dark.
Why do some deep-sea fish have big eyes?
Red or black.
What color are many deep-sea fish?
No, you need special equipment because the pressure is too strong.
Can people dive to the deep sea without special equipment?
A place where hot water comes out of the ocean floor.
What is a hydrothermal vent?
Taking minerals and metals from the ocean floor.
What is deep-sea mining?
The Mariana Trench.
What is the name of the deepest place in the ocean?
Because it is very dark, cold, and has high pressure.
Why is it hard for animals to live in the deep sea?
To attract prey, scare predators, or find mates.
Why do some deep-sea animals glow?
Jacques Piccard and Don Walsh.
Who were the first people to go to the deepest part of the ocean, the Mariana Trench?
Because the water is heated by magma under the ocean floor.
Why is the water at hydrothermal vents so hot?
Because it has valuable metals used in electronics.
Why do some people want to mine the deep sea?
The hadal zone.
What is the deepest part of the ocean called?
Some eat marine snow, others hunt smaller animals.
What do deep-sea animals eat?
An animal that hunts other animals for food.
What does the word "predator" mean?
A remotely operated vehicle, a robot that explores the deep ocean.
What is an ROV?
Yes, some animals have special adaptations to survive.
Can animals live/survive at hydrothermal vents?
A: It can create pollution and harm or destroy sea life.
What is the risk of deep-sea mining? Why is deep sea mining bad/dangerous for the environment/ the planet?
It starts around 1,000 meters (3,280 feet) deep.
How deep is the midnight zone?
Tiny bits of dead plants and animals that fall from above.
What is marine snow?
A very large deep-sea squid with long tentacles.
What is a giant squid?
It helped discover hydrothermal vents and explore the Titanic wreck.
Why is Alvin important?/ What is Alvin
They provide heat and chemicals that bacteria use to make food for deep-sea creatures .
How do hydrothermal vents help deep-sea creatures to survive?
Recycling metals from old electronics can help avoiding it.
What is one way to avoid deep-sea mining?
The twilight zone, the midnight zone, and the hadal zone.
What are the three main parts/zones of the deep sea called?
It is when animals make their own light.
What is bioluminescence?
The anglerfish.
What fish has a glowing lure on its head?
A submarine that went to the bottom of the Mariana Trench in 2012.
What is Deepsea Challenger?
When bacteria make food from chemicals instead of sunlight.
What is chemosynthesis?
The International Seabed Authority (ISA).
Who decides the rules for deep-sea mining?