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Science Unit Test 3 - Reviewer

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

Most producers get their energy from the ______

a)

Consumer

b)

Water

c)

Sunlight

d)

Predators

2.

What is the name for organisms that break down dead plants?

a)

Herbivores

b)

Decomposer

c)

Consumer

d)

Products

3.

What is a mixture of rocks and humus called?

a)

Tundra

b)

Soil

c)

Bedrock

d)

Sand

4.

What is a producer?

a)

Eats animals

b)

Eat plants

c)

Eat both plants and animals

d)

Makes its own food

5.

Which ecosystem has a very dry climate?

a)

Tundra

b)

Ocean

c)

Wetland

d)

Desert

6.

What animal is the mammoth most similar?

a)

Fish

b)

Giraffe

c)

Elephant

d)

Butterfly

7.

What adaptation helps a skunk stay safe?

a)

Big ears

b)

Big eyes

c)

Big nose

d)

Stinky smell

8.

In an ecosystem, what do all living things depend on?

a)

Recycling

b)

Food from plants

c)

Each other

d)

Bright sunlight

9.

People harm the environment by____

a)

cleaning

b)

draining wetland

c)

reusing plastics

10.

Most desert animals are ____ and hunt at night.

a)

Nocturnal

b)

Mimicry

c)

Camouflage

11.

Some animals use ____ to blend into their environment.

a)

Nocturnal

b)

Mimicry

c)

Camouflage

12.

When an organism imitates the color of another organisms, it uses _____ .

a)

Nocturnal

b)

Mimicry

c)

Camouflage

13.

The _____ in most tropical rain forest is warm and wet.

a)

Climate

b)

Endangered

c)

Migrate

d)

Competition

14.

The Saharan cypress is _____ because there is few of these trees left.

a)

Climate

b)

Endangered

c)

Migrate

d)

Competition

15.

Some birds ____ south for the winter.

a)

Migrate

b)

Competition

c)

Extinct

d)

Climate

16.

The struggle among living things for survival is ____ .

a)

Climate

b)

Endangered

c)

Migrate

d)

Competition

17.

A living thing is ____ when there are no more of its kind is alive.

a)

Migrate

b)

Competition

c)

Extinct

d)

Climate

18.

A flood happens when there is no rain for a long time.

a)

TRUE

b)

FALSE

19.

People change their environments more than any other organism.

a)

TRUE

b)

FALSE

20.

A community is all the habitats in the ecosystem.

a)

TRUE

b)

FALSE

21.

Fossils can tell us what an animal ate.

a)

TRUE

b)

FALSE

22.

What is the meaning of 3Rs?

Reduce, Reuse, _____

a)

Reproduce

b)

Recycle

c)

Remake

23.

What does it tell you when a fossil is found deeper in the ground?

a)

It lived long ago.

b)

It lived 2 weeks ago

c)

It lived yesterday.