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Cambridge Science Stage 7 Unit 7

Total questions: 79

Worksheet time: 39mins

Name
Class
Date
1.

What is the main source of energy for life on Earth? (a)  

Choose from the below words
The sun
Plants
Animals
The soil
2.

Which of the following is an example of a producer?

a)

A chicken

b)

Grass

c)

Bacteria

d)

A Lion

3.

The study of organisms in their environment is called

a)

Environmentalism

b)

Conservation

c)

Biology

d)

Ecology

4.

Reorder the following animals in the food chain to show the flow of energy

a)
b)
c)
1)
2)
3)
5.

Match the following

a)
1.

Carnivor

b)
2.

Herbivore

c)
3.

Producer

d)
4.

Consumers

6.

Match the following

a)
1.

Carnivor

b)
2.

Herbivore

c)
3.

Carnivor (howls)

d)
4.

Herbivore (Africa)

e)
5.

Omnivore

7.

Match the following

a)
1.

Predator

b)
2.

Prey

c)
3.

Producer

d)
4.

Consumers

8.

What do you call an organism that only eats plants?

a)

Vegetarian

b)

Herbivore

c)

Omnivore

d)

Cartnivore

9.

What do you call an organism that only eats meat?

a)

Carnivore

b)

Omnivore

c)

Herbivore

d)

Predator

10.

What do you call an organism that needs to hunt for its food?

a)

Carnivore

b)

Herbivore

c)

Hunter

d)

Predator

11.

What do you call an organism that IS HUNTED by other animals for food?

a)

Vegan

b)

Prey

c)

Predator

d)

Herbivore

12.

Elephants, dogs, cats, cows, chickens & leopards are all ....

a)

Consumers

b)

Herbivores

c)

Omnivores

d)

Prey

13.

The original source of energy for a food web is...

a)

plants

b)

sun

c)

producers

d)

decomposers

14.

Arrows in a food web represent...

a)

eating

b)

sunlight

c)

energy

d)

matter

15.

Who is the producer?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

16.

What is a producer?

a)

an organism that gets energy from eating other organisms

b)

an organisms that uses sunlight to make its own food

c)

an organism that gets energy from eating dead organisms, non-living material or waste

17.

An organism that gets energy from eating other organisms is a ______________

a)

producer

b)

consumer

c)

decomposer

18.

A connection of food chains with many food energy paths in an ecosystem is a ____________

a)

ecosystem

b)

food web

c)

environment

19.

What is a carnivore?

a)

an animal that gets energy by eating other animals

b)

An animal that gets energy by eating only plants

c)

an animal that gets energy by eating both plants and animals

20.

Which of the following is NOT a consumer

a)

grass

b)

dog

c)

shark

d)

fish

21.

Plants produce their own food through...

a)

symbiosis

b)

photosynthesis

c)

genetics

d)

magic

22.

What is a food chain?

a)

The flow of energy from one thing to another

b)

The way animals eat each other

c)

The way the sun makes everything

d)

How the plants grow

23.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
24.

What is a food chain?

a)

a group of foods that are similar in features

b)

foods that use sunlight to grow

c)

a representation of the flow of nutrients and energy

d)

arrows that show how animals are linked

25.

What do the arrows in the food chain represent?

a)

Who eats who

b)

What eats what

c)

Who is faster than who

d)

The flow of energy from one thing to another

26.
Use the diagram answer the question.
What is a fitting description for this diagram?
a)
A Food Chain
b)
An Ecosystem
c)
A Food Web
d)
Biotic and Abiotic Factors
27.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
28.

Grass --> ________ --> lion. What is the missing part of this food chain?

a)

maize

b)

deer

c)

ant

d)

hawk

29.
In this food chain, what will happen if the frogs become extinct?
a)
The snakes will increase.
b)
The grasshoppers will decrease.
c)
The eagles will remain the same.
d)
The grasshoppers will increase.
30.

Single flow of energy in an ecosystem.

a)

Food Chain

b)

Food Web

c)

Producer

d)

Consumer

31.

Multiple food chains intertwined with each other. 

a)

Food Chain

b)

Food Web

c)

Producer

d)

Consumer

32.

A group of the same organisms.

a)

Species

b)

Community

c)

Population

d)

Ecosystem

33.

Prey...

a)

hunt other animals

b)

are hunted by other animals

34.

Which of the following is not an example microorganism?

a)

virus

b)

bacteria

c)

worm

d)

fungus

35.
Which type of organism is responsible for recycling the remains of a dead plant or animal to the soil?
a)

Producer

b)

Consumer

c)

Decomposer

d)

All of them

36.

Who is the producer?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

37.

•it is the smallest microorganism

•cannot survive without a host

•does not carry out all of MRS GREN process

Based on the information above, what is this microorganism?

a)

Bacteria

b)

Fungus

c)

Fly

d)

Virus

38.

An arrangement of interrelated food chains illustrating the flow of energy between interdependent organisms.

a)

predator

b)

food web

c)

ecosystem

d)

food chain

39.
Mold helps dead things (plants, animals)...
a)

Die

b)

Decay

c)

Grow

d)

Reproduce

40.
Which type of consumer eats plants only?
a)
Herbivores
b)
Omnivores
c)
Carnivores
d)
Scavengers
41.
Who does the grasshopper get energy from? 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Ow
42.

A consumer that hunts is called ____.

a)

a producer

b)

nothing

c)

a herbivore

d)

a predator

43.
Yogurt and cheese  can be produced from ___________.
a)
Bacteria
b)
Virus
c)
Protozoa
d)
Algae
44.
Bacteria is known as ______________ in an ecosystem when feeding on dead organisms.
a)
decomposers
b)
herbivores
c)
pathogens
d)
infections
45.
Bacteria are made up of how many cells?
a)
1
b)
2
c)
3
d)
trillions!
46.

What is a cell?

a)

Is a smallest part of living thing

b)

Fiber

c)

Nutrients

d)

Wastes

47.
What type of instrument would you use to look at cells?
a)
Telescope
b)
Giroscope
c)
Microscope
d)
None of the above
48.

Yeast is a type of ____________ that people use to make bread.

a)

Bacteria

b)

Fungus

c)

Virus

d)

Protist

49.

Microorganisms need certain condition to stay alive and grow. Which of the following condition that is not suitable for microorganism to grow.

a)

present of water

b)

present of oxygen

c)

warmth temperature

d)

cold temperature

50.

Which of the following micro-organisms is called animal-liked because they have special feature to move like animal?

a)

fungi

b)

algae

c)

bacteria

d)

protozoa

51.
A tiny, nonliving particle that invades and then reproduces inside a living cell.
a)
Bacteria
b)
Virus
c)
Protist
d)
Fungi
52.
All viruses contain this.
a)
nucleus and DNA or RNA
b)
DNA or RNA and protein coat
c)
protein coat and nucleus
d)
cell wall and DNA or RNA
53.

What do microorganisms decompose to help the environment?

a)

rocks

b)

dead matter

c)

water

d)

steel

54.

Some microorganisms in your body can help protect you from bad microorganisms.

a)

True

b)

False

55.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
56.
This is an image of a _________.
a)
consumer
b)
scavenger
c)
decomposer
d)
producer
57.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
58.
Organisms that feed on both living producers and other consumers.
a)
Carnivores
b)
Omnivores
c)
Herbivores
d)
Detritivores
59.
What is the first thing that would happen in this food chain if the grass died?
Sun -> Grass -> Mouse -> Snake -> Hawk
a)
The snake population would increase
b)
the mouse population would increase
c)
the mouse population would decrease
d)
the hawk population would decrease
60.
Most microorganisms cannot be seen without a...
a)
microscope
b)
magnifying lens
c)
telescope
d)
x-ray machine
61.

It is the group of the same kind of bacteria growing together in a specific culture medium placed on a petri dish.

a)

Bacterial group

b)

Bacterial army

c)

Bacterial colony

d)

Bacterial growth

62.

A ​ (a)   is how different species get ​ (b)   from other species.

Choose from the below words
food chain
energy
food web
animals
food
63.

A producer gets energy from the ​ (a)  

Choose from the below words
sun.
carnivores
omnivores
herbivores
other producers
64.

Label the food chain

a)decomposer
b)sun
c)producer
d)primary consumer
e)secondary consumer
1
2
3
4
5
1)
2)
3)
4)
5)
65.

The (a)   gives an ecosystem all it's energy.

66.

The Sun's energy allows (a)   to produce their own food.

67.

A producer is a living thing that makes it's own (a)   .

68.

Without a producer, other organisms would (a)   .

69.

What is a Food Chain?

a)

The reduction of energy from organism to organism.

b)

The transfer of energy from organism to organism.

c)

The hunting of animals.

d)

The death of wild animals.

70.

What is a food web?

a)

Multiple organisms linked together.

b)

A group of wild animals.

c)

Multiple food chains linked together.

d)

A group of dead animals.

71.

What is a producer?

a)

An organism that makes its own food.

b)

An organism that depends on other organisms to produce its food.

c)

An organism that eats other animals.

d)

An organism that produces plants.

72.

A model that shows one direct flow of energy from the Sun to decomposers in an ecosystem is called a

a)

food web

b)

food chain

c)

population

d)

community

73.

When you compare the deer to the wolf, the deer would be the

a)

decompser

b)

predator

c)

prey

d)

producer

74.

Choose the living things in the food web that are consumers --click on the image to make it larger

a)

wildflowers

b)

hawk

c)

rabbit

d)

snake

e)

mouse

75.

Click on the image to make it larger-- Choose the living things that are producers...

a)

wildflowers

b)

rabbit

c)

snake

d)

grass

76.

Click on the image to make it larger--The rabbit gets energy from the ....

a)

hawk

b)

mouse

c)

wildflowers

d)

grass

77.

Bears eat berries and salmon. Bears are ...

a)

producers

b)

carnivores

c)

omnivores

78.

What is this model called?

a)

Food Chain

b)

Food Web

c)

Habitat

d)

Herbivore

79.

Lions only eat buffalo, antelopes, zebras and crocodiles. They are called __________.

a)

Omnivore

b)

Herbivore

c)

Carnivore

d)

Delivore

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