Life of the Reef
Reefs and Threats
Vocab
-tion
-sion
100

What are corals really, even though they look like rocks or plants?

groups of tiny animals

100

Which type of reef sits right next to the shoreline?

fringing reef

100

What arm-like parts surround a polyp's mouth to reach out and catch food at night?

tentacles

100

What noun do you form when you add -tion to the verb act?

action

100

What suffix ending is used in the coral vocabulary word erosion?

-sion

200

What are the tiny, pea-sized animals that make up corals called?

polyps

200

What circular, ring-shaped reef forms around an old, sinking island or volcano?

atoll

200

What do you call the body of water separated from the sea by a barrier reef or inside an atoll?

lagoon

200

What noun do you get when you add -tion to the verb protect?

protection

200

What noun do you get when you add -sion to the base root in divide?

division

300

What nutritious plants live with hard corals to give them food?

algae

300

What causes white and black band diseases on a coral reef?

bad bacteria

300

Sea anemones hide in narrow openings or cracks in the reef called ____.

crevices

300

Change the verb invent into a noun using the suffix -tion.

invention

300

What noun do you form when you add -sion to the root word in decide?

decision

400

Name two animals that use the reef for food or shelter.

fish, crustaceans (shrimp, lobsters, crabs), clams, starfish, sea anemones, or moray eels

400

Name two ways human activity can hurt or destroy coral reefs.

fishing with explosives/poisons, pollution/runoff, dropping anchors, breaking pieces off, or oil leaks

400

What story word describes soil wearing away from construction and washing into the water?

erosion

400

What noun is formed when you add -tion to the verb locate?

location

400

Change the verb explode into a noun using the suffix -sion.

explosion

500

What soft corals are named after objects they resemble?

brain, elkhorn, sea whip, sea pen, or sea fan corals

500

According to the script, how do coral reefs protect human communities on land?

protecting coasts from storms and floods

500

What story word describes polluted water or dirt flowing off the land into the ocean?

runoff

500

What rule applies when adding -tion to a base word that ends in a silent e (like educate)?

drop the silent e before adding -tion

500

What clue helps you know when to use -sion instead of -tion?

use -sion when the base word ends in d, de, s, or se (or when it makes the /zhun/ sound)