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science ease 3 grade 6 #2

Total questions: 86

Worksheet time: 1hrs 25mins

Name
Class
Date
1.

The shortgrass prairie is an ecosystem found in the Great Plains. Many different populations of animals depend on the prairie ecosystem for survival. A typical community includes animals such as snakes, birds, mice, rodents, and insects.


Which food chain most accurately demonstrates the flow of energy in a shortgrass prairie ecosystem?

a)

grasshopper → bird → rodent → buffalo

b)

hawk → snake → mouse → grasshopper

c)

grasshopper → mouse → snake → hawk

d)

snake → hawk → skunk → mouse

2.

Observe the food chain above. Which organism’s population would increase if finches were removed from the ecosystem?

a)

Grass

b)

Grasshopper

c)

Snake

d)

Hawk

3.

The roadrunner is a desert bird that eats fruits and seeds. It also eats insects, spiders, scorpions, and rattlesnakes.


What would likely happen if the roadrunner population disappeared from its ecosystem?

a)

There would be no more fruits or seeds.

b)

There would a decrease in spider populations.

c)

The rattlesnake population would stay the same.

d)

There would be an increase in scorpion populations.

4.

What is one example of the way that energy flows in the food chain above?

a)

Energy flows from grass to the Sun

b)

Energy flows from hawks to snakes

c)

Energy flows from grasshoppers to finches

d)

Energy flows from snakes to finches

5.

The diagram shows a grassland food chain. If the mice are removed from this food chain, which animal population would most likely be affected first?

a)

Plant Seeds

b)

Field Mice

c)

Snakes

d)

Mountain Lions

6.

The diagram shows a food chain.


The squirrel gets its energy directly from -

a)

sun

b)

trees

c)

other squirrels

d)

hawk

7.

In this food chain, where does the lizard get its energy from?

a)

plant

b)

grasshopper

c)

mushrooms

d)

sun

8.

What is a part of the food chain that makes its own food and nutrients?

a)

consumer

b)

producer

c)

omnivore

d)

sun

9.

An animal that eats only plants is called a -

a)

carnivore

b)

omnivore

c)

insectivore

d)

herbivore

10.

An animal that eats both plants and animals is called a -

a)

omnivore

b)

herbivore

c)

carnivore

d)

producer

11.
Another word for a living thing is a:
a)
animal
b)
organism
c)
plant
d)
community
12.
Which of the following best describes the blue bird's (in the middle) role in this ecosystem?
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
13.
Which of the following best describes the deer's role in the ecosystem?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
14.
Which of the following best describes the wolf's role in this ecosystem?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
15.
Bacteria and fungi typically serve what role in an ecosystem?
a)
herbivore
b)
carnivore
c)
omnivore
d)
decomposer
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
d)
an organism that uses chemical energy to make its own food
17.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
18.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
19.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
20.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
21.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
22.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
23.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
24.
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.
25.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
26.

The fox in this food web would be considered a:

a)

3rd level Consumer

b)

Producer

c)

2nd level Consumer

d)

Primary Consumer

27.

The image provided is an example of a:

a)

Producer

b)

Carnivore

c)

Consumer

d)

Decomposer

28.

The image provided is an example of a(n):

a)

Carnivore

b)

Herbivore

c)

Producer

d)

Omnivore

29.

The image provided is an example of a(n):

a)

Omnivore

b)

Carnivore

c)

Herbivore

d)

Decomposer

30.

Which of the following is producer/autotroph?

a)

rabbit

b)

frog

c)

tree

d)

worm

31.

Using the food web which of the following is a primary consumer?

a)

butterfy

b)

snake

c)

fox

d)

frog

32.

Using food web which of the following is a secondary consumer?

a)

snake

b)

worm

c)

butterfy

d)

squirrel

33.

Using the food web which of the following is a tertiary consumer?

a)

frog

b)

bird

c)

eagle

d)

worm

34.

Using the food web what would happen if the eagle became extinct?

a)

The frog population would decrease.

b)

The frog population would increase.

c)

The butterfly population would increase.

d)

The snake population would decrease.

35.

If fish were poisoned which organism would be affected?

a)

algae

b)

phytoplankton

c)

clams

d)

octopus

36.

Which organism is on the 2nd trophic level?

a)

clam

b)

algae

c)

octopus

d)

shark

37.

Using food web which organism is the top predator?

a)

octopus

b)

shark

c)

clam

d)

lobster

38.

Using food web what is the highest trophic level?

a)

1

b)

2

c)

3

d)

5

39.

Using the food web how many organisms only eat producers?

a)

2

b)

3

c)

4

d)

5

40.

The number of organisms at the top of the energy pyramid are usually smaller because the hawk

a)

needs more energy

b)

has more predators

c)

have more offspring

d)

eat producers

41.

What % of energy is passed from organism to organism?

a)

100%

b)

10%

c)

5%

d)

25%

42.

The graph shows that

a)

wolf population control the rabbit population

b)

the rabbit population control the wolf population

c)

the two populations do not affect each other

d)

wolves do not hunt rabbits

43.

How does biodiversity contribute to the sustainability of an ecosystem?

a)

The presence of more species with different adaptations makes it more likely that some organisms will survive an ecological disaster

b)

Greater genetic variation within species makes it more likely that some individuals will survive disease outbreak

c)

The presence of a variety of herbivore species that can feed on a large number of different producer species helps ensure abundant prey for predators in the ecosystem.

d)

all the above

44.

A biome is.....

a)

large geographic areas with similar climates and ecosystem

b)

a smaller part of the biosphere consisting of the organisms and non-living features that interact in an area

c)

the variety of organisms in an ecosystem

d)

area of the Earth where life exists

45.

Which two animals below are primary consumers

a)

moth and ant

b)

mushroom and moth

c)

ant and hawk

d)

spider and mouse

46.

Which of the following is a tertiary consumer?

a)

hawk

b)

mouse

c)

moth

d)

spider

47.

The picture is a

a)

Food web

b)

A food chain

c)

A biome

d)

A biosphere

48.

In a food web the arrow always points to

a)

the consumer

b)

the prey

c)

producer

d)

autotroph

49.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
50.
Without gravity we would________. 
a)
Float away
b)
Stay in the ground
c)
Nothing would happen.
d)
I don't know
51.
Which has more mass, Earth or the Moon?
a)
Earth
b)
Moon
c)
The same
52.
What is mass?
a)
How much MATTER makes up an object.
b)
How much GRAVITY is pulling an object.
53.
What is weight?
a)
The measure of how HEAVY something is.
b)
The measure of how much GRAVITY is pulling on an object.
c)
BOTH answers are correct.
d)
None of them.
54.
What is the SI unit used to measure force? 
a)
pounds 
b)
grams 
c)
newtons 
d)
friction
55.
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
a)
18 g
b)
4 g
c)
0 g 
d)
32 g 
56.
A child has a mass of 30 Kg on Earth. If the gravity on Moon is one sixth that of the Earth what is the mass of the child on Moon? 
a)
30 Kg
b)
180 Kg
c)
5 Kg
d)
0 Kg
57.
The scientific unit of weight is
a)
Kg
b)
N
c)
pounds
d)
Kgm/s
58.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
59.
The scientific unit for mass is
a)
Kg
b)
N
c)
pounds
d)
ounces
60.
If an object mass =30 Kg on the Earth, what would be it's weight on Earth?
a)
30 N
b)
300 kg
c)
3000N
d)
300 N
61.

Which of the following is NOT an effect of a force?

(SPE/2014/Q11)

a)

Changes the direction of a moving object.

b)

Changes the mass of an object.

c)

Changes the shape of the object.

d)

Changes the speed of the object.

62.

One of the effects of forces is changing the direction of a moving object. Study the list below:


Which items in the list are also the effects of forces on an object? (SPE/2016/Q18)

a)

I, II, III and IV

b)

I, II and III only

c)

I, II and IV only

d)

I and II only

63.

A ball is rolling towards the right. A force is applied on the ball in the opposite direction as shown in figure below. Which of the following effects could happen to the ball? (SPE/2017/Q20)

a)

(i), (ii)

b)

(ii), (iii)

c)

(i), (ii), (iii)

d)

(ii), (iii), (iv)

64.

Which property of the ball remains unchanged when a boy kicks a ball? (SPE/2014/Q15)

a)

Mass of the ball.

b)

Shape of the ball.

c)

Size of the ball.

d)

Speed of the ball.

65.

Which of the following effects cannot be observed when you kick a moving ball?

a)

The ball gets bigger.

b)

The ball moves faster.

c)

The ball changes its direction.

d)

The ball moves faster in a different direction.

66.

Which of the following is measured in newtons (N)?

a)

Size

b)

Mass

c)

Energy

d)

Friction

67.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
68.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
69.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from one source. 
c)
Electricity flows along more than one pathway. 
d)
The flow of electricity comes from more than one source. 
70.
Which best describes a series circuit? 
a)
It has two light bulbs. 
b)
The same current flows through both light bulbs. 
c)
It uses a single battery.
d)
The current is divided between the light bulbs. 
71.
What is one problem with using a series circuit? 
a)
It has a lot of series. 
b)
If one goes down, they all go down! 
c)
It doesn't work properly.
d)
There are no problems. 
72.
What is one benefits of using a parallel circuit?  
a)
It gets confusing.
b)
There are no problems.
c)
If one goes down, it does not affect the others. 
d)
Porque es para llelio. 
73.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
74.
Silver is a _____?
a)
insulator
b)
conductor
75.
This instrument can be used to see if materials conduct electricity.  Which of these groups contains items that could all conduct electricity to complete the circuit?
a)
rubber ball, plastic comb, nail
b)
paper clip, penny, screw
c)
cork, dollar bill, tweezers
d)
pencil, eraser, spoon
76.
Will the light bulb in this circuit light and why/why not?
a)
yes, because it has two batteries
b)
no, because the switch is open
c)
yes, because it is in a circuit
d)
no, because the bulb is burned out
77.
What will happen if one light bulb is removed from this circuit?
a)
the other bulbs will go out
b)
the other bulbs will get dimmer
c)
the other bulbs will get brighter
d)
the battery will become stronger
78.
Which light will be brighter and why?
a)
Bulb A because its circuit is closed
b)
Bulb B because its circuit is closed
c)
Bulb B because it has more volts
d)
Bulb A because it has less volts
79.
Which of these correctly shows what happens when two magnets are placed side by side?
a)
A
b)
B
c)
C
d)
D
80.
water is a______?
a)
conductor
b)
insulator
81.
wood is a _____?
a)
conductor
b)
insulator
82.

Bobby's blue bowling ball weighs 70N. Bobby puts his bowling ball in jelly (upthrust = 0.064N), will the bowling float or sink?

a)

Float

b)

Sink

83.

What happens when oil and water mix?

a)

water floats on top because it is less dense than oil

b)

oil floats on top because it is more dense than water

c)

oil floats on the top because is it less dense than water

d)

water floats on top because it is more dense than oil

84.

--------------- force causes water to be displaced or pushed out of the way

a)

Upthrust

b)

Gravitational

c)

Friction

d)

None

85.

When an object is partially or completely immersed in a fluid, it experiences an upthrust force which is equal to the weight of fluid displaced by it

a)

Newton's law

b)

Archimedes Principle

c)

Ibn -e-batuta

d)

Einstein

86.

--------------- force causes water to be displaced or pushed out of the way

a)

Upthrust

b)

Gravitational

c)

Friction

d)

None

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