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WorksheetsWhat do you know about Coral Reefs?
Total questions: 20
Worksheet time: 10mins
Where are coral reefs found?
In Hawaii
Shallow tropical seas
Australia
Deep in the ocean
They might look like colorful rocks but coral is really . . .
a plant
a rock
an animal
vegetable
True or False: Coral are stationary. (That means they stay in one place.)
True
False
Coral grows slowly only a few _____ each year.
kilometers
meters
centimeters
millimeters
True or False: Coral can be hard or soft.
True
False
Soft coral can look like . . .
fans
bushes
feathers
all of the above
When many corals grow together it is called . . .
a mess
a community
a castle
a reef
True or False:
Reefs provide important habitat for fish and other creatures.
True
False
True or False:
A Nurse Shark can crush coral and shellfish but they prefer to eat shrimp, fish and squid.
True
False
What else grows in the coral reef?
sponges
algae
all of the above
What sea animal uses sponges and algae as its food source?
starfish
sea turtle
great white shark
none of the above
Which statement is true?
Sea turtles benefit from the reef because it supplies a food source.
The coral reef benefits from the sea turtles because it eats sponges and algae and keeps them from being overgrown.
all of the above
none of the above
Why is it important to protect sea turtles?
Because it's fun to watch them swim.
Because we don't want them to become extinct.
Because the health of the coral reef ecosystem depends on it.
Answers 2 and 3
Which one is an example of a symbiotic relationship?
Sea anemone and clown fish
Cheeseburger and french fries
cookies and milk
sand and castle
How many pounds of sand does a parrot fish produce each year?
20 pounds
200 pounds
2000 pounds
That's so disgusting!
Coral reefs are sometimes called . . .
underwater playground
sandcastles of the ocean
rainforests of the sea
forest of the deep
Coral Reefs provide a habitat for . . .
3/4 of ocean animals
1/2 of ocean animals
1/4 of ocean animals
none of the ocean animals
Which of these puts coral reefs at risk?
overfishing by humans
ocean pollution
warming temperatures
all of the above
If nothing changes, coral reefs will be in danger of dying and disappearing in . . .
5 years
10 years
15 years
20 years
Things I can do to help protect the coral reef are . . .
not waste water
don't pour chemicals down the drain
pick up trash at the beach
all of the above
