If something is a mystery, that means it's difficult to . . .

• find

• see

• understand

• ignore

Tags

L3.6

What does research mean?

• to collect information about something

• to explore a new place for the first time

• to work together to solve a problem

• to look for a particular animal

Tags

L3.6

Sort the examples of predator and prey into the correct category.

Groups:

(a) Predator

,

(b) Prey

• An animal that eats another animal

• A hoki fish that is hunted by a giant squid

• A sperm whale that hunts a giant squid

• An animal that is killed by another for food

Tags

L3.6

What is an ecosystem?

• the place where an underwater animal lives and eats

• an area of soft, wet land where many grasses grow

• the qualities that make one thing different from another

• all the living and nonliving things in a particular environment

Tags

L3.6

What do you notice and wonder about "Life on a Coral Reef"?

Write two things you notice and two questions you have.

Tags

RI.3.10

Read the following sentences from the text:

"These corals have a soft covering over hard insides. The covering is called an exoskeleton. As the coral grows, the coral builds a bigger and bigger exoskeleton (paragraph 3).

Which phrase describes what an exoskeleton is?

• "these corals"

• "hard covering"

• "soft insides"

• "bigger and bigger"

Tags

L.3.4

L.3.6

RI.3.1

RI.3.10

RI.3.4

Match the meanings to the word parts in the word exoskeleton.

exo + skeleton

​ ​ (a)   + the framework that supports and protects an animal's body

• outside
• animal
• warm
• large

Tags

L.3.4

L.3.6

RI.3.1

RI.3.10

RI.3.4

Match each word or phrase from the text to its definition.

• parts of an animal that can catch food

• tentacles

• tiny animals that attach themselves to a rock

• coral reefs

• underwater structures made of exoskeletons and coral

• algae

• living things similar to plants that feed coral

• coral polyps

Tags

L.3.4

L3.6

RI.3.1

RI.3.10

RI.3.4

How do coral reefs form?

• Hard coral reefs make exoskeletons, and soft corals live inside of them.

• Soft corals live on rocks, and hard corals protect them.

• Hard corals leave behind exoskeletons, and other corals live on top of them.

• Tiny corals live near a big rock, and other animals come and eat them.

Tags

RI.3.1

RI.3.10

Part A: What is the main idea of this paragraph?

"Many living things depend on a coral reef. Some, called algae, are like plants. Algae make food that helps feed the coral. Other sea animals eat the algae that grow on coral reefs. And bigger animals come eat those animals!"

• Coral reefs, plants, and sea animals help each other survive.

• There are many different kinds of underwater plants.

• Big and small sea animals depend on algae for food.

• The biggest sea animals can eat whatever they want.

Tags

RI.3.1

RI.3.10

RI.3.2

RI.3.5

RI.3.7