Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
National Geographic Coral Reefs
0
%
0
0
0
Back
Restart
Is coral reef made of rocks?
No, it is made of animals
Oops!
Okay!
What is this fish that uses camouflage to hunt?
Stone fish
Oops!
Okay!
What is this?
Giant clam
Oops!
Okay!
How long ago were the first corals formed?
240 million years ago.
Oops!
Okay!
How does this animal hunt at night?
Big eyes
Oops!
Okay!
What is this?
Coral Reef
Oops!
Okay!
What are the three reef zones?
Reef flat, Crest, Reef slope
Oops!
Okay!
Where can you find coral reefs?
Around the equator
Oops!
Okay!
What do millions of people eat from the reefs?
Fish
Oops!
Okay!
What is this?
Dugong
Oops!
Okay!
How old are most coral reefs today?
5,000 to 10,000 years old
Oops!
Okay!
How many kinds of hard coral are there?
800
Oops!
Okay!
What damages the reefs?
Pollution / Hot water
Oops!
Okay!
How does this creature hunt at night?
Feels the surface
Oops!
Okay!
What are these small things?
Polyps
Oops!
Okay!
What fish can change its skin color?
Cuttlefish
Oops!
Okay!
Does hard or soft coral make reefs?
Hard
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies