Deep Sea
The deep ocean receives very little or none of this from the Sun.
What is sunlight?
A group of dolphins is commonly called this.
What is a pod?
This is the largest fish species in the world.
What is the whale shark?
Coral reefs are sometimes nicknamed the “________ of the sea.”
What are the rainforests?
Approximately this percentage of Earth's surface is covered by oceans.
What is 71%?
Some deep-sea animals can create their own light through this process.
What is bioluminescence?
Dolphins use clicks and returning echoes to locate objects and prey.
What is echolocation?
Sharks existed on Earth before these famous prehistoric reptiles appeared.
What are dinosaurs?
True or false: Coral is a type of underwater rock.
What is false?
This animal is the largest known animal to have ever lived on Earth.
What is the blue whale?
This deep-sea fish attracts prey using a glowing lure that hangs near its mouth.
What is an anglerfish?
Dolphins communicate with one another using clicks and these high-pitched sounds.
What are whistles?
More than approximately this many species of sharks are known to science.
What is 500?
Reefs provide food, shelter, and this general type of living area for thousands of marine species.
What is a habitat?
An octopus has this many hearts.
What is three?
As you travel deeper into the ocean, this force becomes much greater because of the weight of the water above.
What is water pressure?
Dolphins may look like they're smiling, but the appearance is mainly caused by this feature of their bodies.
What is the shape of their jaw/mouth?
Sharks belong to a group of fish whose skeletons are mostly made from this flexible material rather than bone.
What is cartilage?
When stressed coral loses the algae living within it and turns pale or white, this phenomenon occurs.
What is coral bleaching?
The five commonly recognized oceans are the Pacific, Atlantic, Indian, Arctic, and this ocean.
What is the Southern Ocean?
This is the deepest known part of Earth's oceans, located in the Mariana Trench.
What is Challenger Deep?
Dolphins must regularly come to the surface because, unlike fish, they breathe using these organs.
What are lungs?
This shark, famous for its unusual head shape, has eyes positioned far apart on either side of its head.
What is a hammerhead shark?
Tiny individual coral animals are known by this name.
What are polyps?
This ocean is both the largest and deepest ocean on Earth.
What is the Pacific Ocean?