wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

habitat and ecosystem grade 3

Total questions: 46

Worksheet time: 23mins

Name
Class
Date
1.

What is an ecosystem?

a)

An area in nature that includes only living organisms

b)

An area in nature that includes both living and non-living organisms

c)

Groups of species

d)

An organism's home

2.
Which animal are you most likely to see in a forest?
a)
camel
b)
dolphin
c)
squirrel
d)
penguin
3.
All life requires air, food and water.  Which ecosystem will probably have the least amount of plant and animal life?
a)
forest 
b)
desert
c)
ocean
d)
rain forest
4.
Why do very few plants grow in the desert?
a)
the soil is dry and it does not rain much there
b)
there is not enough animals
c)
there is too much rainfall
d)
the weather is too hot during the day and too cold at night
5.

Is our body an ecosystem?

a)

No

b)

Yes! Our body is home to many microorganisms

6.
What do we call the place where an animal lives?
a)
Home
b)
Habitat
c)
Community 
d)
Population 
7.

Plants use energy from ______ to make food.

a)

stars

b)

moon

c)

planets

d)

sunlight

8.

Which is one way humans can affect an ecosystem in a negative way?

a)

planting trees

b)

recycling paper

c)

cutting trees down

d)

planting a garden

9.

Plants, animals, water, soil, and sunlight in an area all interact to form a(n).......

a)

ecosystem

b)

life cyccle

c)

desert

d)

ocean

10.

In an ecosystem, organisms have different homes, or .........................where they live.

a)

habitat

b)

food

c)

water

d)

air

11.

Plants, animals, water, soil, and sunlight in an area all interact to form a(n).......

a)

ecosystem

b)

life cyccle

c)

desert

d)

ocean

12.

In an ecosystem, organisms have different homes, or .........................where they live.

a)

habitat

b)

food

c)

water

d)

air

13.

Plants and animals get food, water, and ................................from their habitats.

a)

shelter

b)

clothes

c)

space

d)

money

14.

Green plants and algae are............................. that use the Sun’s energy to make food.

a)

producers

b)

consumers

c)

decomposers

d)

herbivores

15.

Organisms that get their energy from eating other organisms are called.........................

a)

producers

b)

consumers

c)

decomposers

d)

herbivores

16.

Decomposers, such as worms and .......................,break down dead plants and animals.

a)

mushrooms

b)

lions

c)

eagles

d)

cows

17.

Decomposers put .............................. into the soil that are used by new plants.

a)

money

b)

water

c)

wood

d)

nutrients

18.

A grasshopper is a(n) ..............................because itgets its energy from eating plants.

a)

decomposer

b)

producer

c)

consumer

d)

ecosystem

19.

A heron is a(n) ...........................because it gets its energy from eating animals

a)

producer

b)

decomposer

c)

consumer

d)

ecosystem

20.

A bear is an omnivore, which means that it eats ......................

a)

plants only

b)

animals only

c)

plants and animals

d)

none of the following

21.

If ecosystems did not have ......................., piles of dead plants and animals would build up.

a)

consumers

b)

producers

c)

decomposers

d)

lions and tigers

22.

....................................is the living and nonliving things that interact in an environment .

a)

predators

b)

preys

c)

ecosystem

d)

producers

23.

(a)   an organism that makes its own food

24.

Plants, animals, water, soil, and sunlight in an area all

interact to form a(n)

a)

habitats

b)

ecosystem

c)

shelter

d)

energy

25.

Plants and animals get food, water, and................

from their habitats.

a)

food chain

b)

shelter

c)

bacteria

d)

nutrients

26.

In an ecosystem, organisms have different homes, or..................................................

where they live.

a)

shelter

b)

food

c)

food chain

d)

habitats

27.

an organism that eats other organisms

a)

food web

b)

producer

c)

decomposer

d)

consumer

28.

an organism that makes its own food

a)

habitat

b)

food chain

c)

predator

d)

producer

29.

an organism that breaks down dead plant and

animal material.

a)

food chain

b)

food web

c)

decomposer

d)

ecosystem

30.

organisms that eat plants

a)

lion

b)

omnivores

c)

carnivores

d)

herbivores

31.

Animals that eat both plants and

animals are..................................

a)

prey

b)

herbivores

c)

omnivores

d)

carnivores

32.

. Animals that eat other animals

a)

predator

b)

herbivores

c)

carnivores

d)

omnivores

33.

It is a living thing that makes or produces its own food.

a)

producer

b)

consumer

c)

decomposer

34.

It is a living thing that breaks down wastes and dead plants and animals to get energy.

a)

producer

b)

consumer

c)

decomposer

35.

is all living things of the same kind that live in the same place

a)

population

b)

community

c)

habitat

36.

is a place where a living thing makes its home

a)

population

b)

community

c)

habitat

37.

is all the populations that live together in the same place

a)

population

b)

community

c)

habitat

38.

Consumers that eat only plants

a)

herbivore

b)

carnivore

c)

omnivore

39.

Consumers that eat only animals

a)

herbivore

b)

carnivore

c)

omnivore

40.

Consumers that eat both plants and animals.

a)

herbivore

b)

carnivore

c)

omnivore

41.

can burn forests

a)

fire

b)

hurricane

c)

floods

42.

Ash from the fire makes soil healthy.

a)

true

b)

false

43.

During drought, very little rain falls

a)

true

b)

false

44.

habitat is the living and nonliving parts in an environment interacting together

a)

true

b)

false

45.

What is a habitat?

a)

A place where lions live.

b)

A place where dads live.

c)

A place where animals live.

d)

A new chocolate bar from Willy Wonka.

46.

In which habitat do camels live?

a)

ocean

b)

desert

c)

Arctic

d)

Shanghai