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How Wolves Change Rivers - G5 & G6

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

The number of deer increased after the reintroduction of wolves because they had more food available.

a)

True

b)

False

2.

When were wolves reintroduced?

a)

1925

b)

1985

c)

1995

3.

How long had the wolves been absent?

a)

20 years

b)

60 years

c)

70 years

4.

How did the behaviour of deer change after the reintroduction of wolves?

a)

They did not eat any more grass.

b)

They did not go to some parts of the park any more.

c)

They did not have so many offspring.

5.

What happened to the height of trees?

a)

It was multiplied by 5 times.

b)

It was lower because the deer ate the leaves.

c)

Nothing at all.

6.

Why did beavers come?

a)

Because the water was clearer

b)

Because they like to eat trees

c)

Because beavers always come where there is water

7.

Why were there more rabbits?

a)

Because wolves don't eat rabbits

b)

Because the wolves killed the coyotes

c)

Because the rabbits eat the grass left by the deer

8.

Why did the rivers change?

a)

Because the forests stabilized the land at the banks

b)

Because it started to rain more

c)

Because the wolves killed the coyotes

9.

Apart from the ecosystem, what else did the wolves do?

a)

They killed all the deer.

b)

They changed the mountains.

c)

They changed the geography.

10.

What is the conclusion we get after watching the video?

a)

Wolves are not so bad even though they hunt deer.

b)

The rivers are controlled by wolves.

c)

A small change in the ecosystem can mean a lot in nature because we are all connected.

11.

The number of deer increased after the reintroduction of wolves because they had more food available.

a)

True

b)

False