Non-defining relative clause
Rewrite the sentence using "who" or "which":
My teacher taught us about dolphins last week. My teacher knows a lot about marine animals.
My teacher, who knows a lot about marine animals, taught us about dolphins last week.
Which vocabulary word is the opposite of:
to fix or improve
damage
Crabs have a hard outer ____________.
shell
Rewrite the sentence using "who" or "which":
Mr. Stamp used to be a marine biologist. Mr. Stamp is my science teacher.
Mr. Stamp, who is my science teacher, used to be a marine biologist.
Rewrite each sentence by adding the word or phrase in parentheses.
There are 50 different species of fish living in this lake. (about)
There are about 50 different species of fish living in this lake.
Rewrite the sentence using "who" or "which":
The Great Barrier Reef covers nearly 350,000 square kilometers. It is home to many marine species.
The Great Barrier Reef, which is home to many marine species, covers nearly 350,000 square kilometers.
Which vocabulary word is the opposite of:
deep; extending far down from the top of surface
shallow
If you want to see fish and other marine animals all in one building, you should visit an ______________.
aquarium
Rewrite the sentence using "who" or "which":
Sea otters have very thick fur. Sea otters live in the northern Pacific Ocean.
Sea otters, which live in the northern Pacific Ocean, have very thick fur.
Rewrite each sentence by adding the word or phrase in parentheses.
We saw 300 fish when we went scuba diving. (more than)
We saw more than 300 fish when we went scuba diving.
Rewrite the sentence using "who" or "which":
The seahorse uses its tail to grasp objects. It is a type of fish.
The seahorse, which is a type of fish, uses its tail to grasp objects.
Which vocabulary word is the opposite of:
to say there's nothing to worry about
warn
A dolphin uses its _____________ to help it steer and stop in the water.
flippers
Rewrite the sentence using "who" or "which":
Coral reefs are living things. Coral reefs are like underwater cities.
Coral reefs, which are like underwater cities, are living things.
Rewrite each sentence by adding the word or phrase in parentheses.
We'll be leaving the aquarium in an hour. (or so)
We'll be leaving the aquarium in an hour or so.
Rewrite the sentence using "who" or "which":
Charles Darwin discovered new species of plant and animal life during his lifetime. He lived in the 1800s.
Charles Darwin, who lived in the 1800s, discovered new species of plant and animal life during his lifetime.
Which vocabulary word is the opposite of:
to push someone or something away
attract
Some animals have large __________ that grow out of their mouths, like long, thin teeth.
tusks
Rewrite the sentence using "who" or "which":
Jellyfish live in the ocean. Jellyfish are sometimes caught by fishermen.
Jellyfish, which are sometimes caught by fishermen, live in the ocean.
Rewrite each sentence by adding the word or phrase in parentheses.
We saw 20 humpback whales during our cruise in Alaska.
We saw more than 20 humpback whales during our cruise in Alaska.
Rewrite the sentence using "who" or "which":
Fur seals are known for their thick fur coats. Their coats allow them to survive in extremely cold ocean water.Fur seals are known for their thick fur coats, which allow them to survive in extremely cold water.
Which vocabulary word is the opposite of:
to leave or disappear
remain
A ___________ is a warm-blooded animal that is usually covered with hair or fur.
mammal
Rewrite the sentence using "who" or "which":
Martin is the director of the aquarium. Martin is very interested in marine conservation.
Martin, who is very interested in marine conservation, is the director of the aquarium.
Rewrite each sentence by adding the word or phrase in parentheses.
We saw 30 fish while snorkeling. (or so)
We saw 30 or so fish while snorkeling.