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science ease 3 grade 6 #1

Total questions: 70

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

The main source of energy for all of earth's food chains is the...

a)

sun

b)

water

c)

nutrients

d)

producers

2.

Plants produce their own food through...

a)

symbiosis

b)

photosynthesis

c)

genetics

d)

magic

3.

All food chains begin with a...

a)

grass

b)

producer

c)

consumer

d)

decomposer

4.

The second link in a food chain is a...

a)

consumer

b)

producer

c)

herbivore

d)

carnivore

5.

A herbivore is also known as...

a)

primary consumer

b)

secondary consumer

c)

tertiary consumer

6.

The second consumer in the food chain is called...

a)

primary consumer

b)

secondary consumer

c)

tertiary consumer

7.

An omnivore is a...

a)

consumer that eats both plants and other animals

b)

consumer that eats only other animals

c)

consumer that eats only plants

8.

Animals that are not hunted and eaten by any animals are called...

a)

herbivores

b)

carnivores

c)

omnivores

d)

apex predators

9.

The level of apex predators in the food chain is...

a)

first

b)

second

c)

tertiary

d)

top

10.

Apex predators contribute to the food chain by...

a)

being eaten by other animals

b)

decomposers breaking down their bodies when they die

c)

producing their own food

11.

Examples of decomposers are...

a)

plants

b)

animals

c)

bacteria and fungi

12.

The level of humans in the food chain is...

a)

first

b)

second

c)

tertiary

d)

top

13.
__________ is an organism that only eats plants for energy.
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Terivore
14.
__________ is an organism that only eats meat for energy.
a)
Omnivore
b)
Borivore
c)
Herbivore
d)
Carnivore
15.
__________ is an organism that eats BOTH plants and animals for energy.
a)
Omnivore
b)
Darnivore
c)
Carnivore
d)
Herbiovre
16.
Elephants only eat leaves, fruit, nuts and grass. They are called __________.
a)
Omnivore
b)
Fortivore
c)
Herbivore
d)
Carnivore
17.

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

a)

There would be a decrease in the small bird population.

b)

There would be a decrease in the grass/flowers population.

c)

There would be a decrease in the mice population.

d)

There would be an increase in the grass/flowers population.

18.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
19.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
d)
composers
20.
An organism that gets energy from eating other organisms is a ______________
a)
producer
b)
consumer
c)
decomposer
d)
prey
21.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
22.
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.
23.
A food chain shows the transfer of ___ from one organism to another. 
a)
matter
b)
consumers
c)
energy
d)
habitat
24.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
25.
How do producers obtain energy?
a)
They conduct photosynthesis.
b)
They consume plants.
c)
They consume primary consumers.
d)
They consume secondary consumers.
26.
Which represents the largest group in a food web?
a)
carnivores
b)
omnivores
c)
herbivores
d)
producers
27.
What are the organisms that break down dead stuff?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Organisms
28.
What is the best definition for mass?
a)
how much space an object takes up
b)
how much matter an object contains
29.

What has more mass?

a)

an F1 car

b)

a ball

c)

an aircraft

d)

a feather

30.
Mass is measured in
a)
grams
b)
grams and kilograms 
c)
kilograms 
d)
centimetres 
31.

The astronaut floats in international space station. It proves that...

a)

His weight is less in space

b)

His mass is less in space

c)

His weight does not change

d)

His mass is more in space

32.

If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?

a)

less than 1000 kg

b)

more than 1000 kg

c)

1000kg

33.

weight is measured in...

a)

pounds (lb)

b)

grams (g)

c)

newtons (N)

d)

kilograms (kg)

34.

What is the name of this tool?

a)

spring balance / force meter

b)

scale

c)

measuring cylinder

d)

thermometer

35.

What is weight?

a)

the pulling force of gravity on an object

b)

the time it takes to get on a ride

c)

the amount of matter in an object

d)

the size of an object

36.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
None of the above
37.

Hitting a moving tennis ball with a tennis racket changes its ________ and ________.

a)

shape; direction

b)

speed; shape

c)

shape; speed

d)

direction; speed

38.

At the start of a football game, a footballer kicks a ball placed in the middle of the field to move the ball.

What is the effect of force on the object?

a)

Change the direction of a moving object

b)

Make a moving object stop

c)

Make a moving object move slower

d)

Make a stationary object move

39.
In a football game, the goalkeeper stops a moving ball to prevent it from entering the goal.
What is the motion of the object?
a)
Change the direction of a moving object
b)
Make a moving object stop
c)
Make a moving object move slower 
d)
Make a stationary object move
40.

which of the following is not an effect of force:

a)

to move a body from rest

b)

to stop a moving body

c)

to change the colour of an object

d)

to change the shape of a body

41.

in the given figure force is

a)

changing the direction of motion

b)

changing the shape

c)

stopping a moving object

d)

none of the above

42.

A force can make a moving body move faster

a)

true

b)

false

43.

What effect will the force done by the red player?

a)

The ball will stop moving.

b)

The ball will permenantly change shape.

c)

The ball will slow down.

d)

The ball will change the direction of its movement

44.

What is the effect of force shown here?

a)

Change in shape

b)

change in speed

c)

change in direction

d)

force can stop an object

45.

How does the force act here?

a)

Change speed and direction

b)

Force stops the ball and changes its shape

c)

Force stops the ball

d)

Change only speed

46.

Choose the right option

a)

Force stops the tennis ball

b)

Force changes the shape of the ball

c)

Force changes direction of the tennis ball

d)

Forces changes speed and direction of the tennis ball

47.

What changes does the picture show?

a)

change in shape and direction

b)

change in motion and direction

c)

change in color and direction

d)

change in motion and position

48.

Which word best describes the force from a liquid acting on a floating object?

a)

Weight

b)

Upthrust

c)

Water resistance

d)

Friction

49.

When an object is floating in water, the object's weight and the upthrust of the water are ________ .

a)

balanced

b)

unbalanced

c)

zero

d)

dependent on other things

50.

Objects in water feel _______ than in the air.


Hint: think of the upthrust in water compared to the upthrust in air and then the resultant force

a)

the same

b)

heavier

c)

'weightless'

d)

lighter

51.

Salty water has a _________ density compared to freshwater.

a)

lower

b)

similar

c)

higher

52.

Density means ...

a)

it is heavy

b)

the amount of mass an object has, relative to its volume

c)

you can not see through it

d)

it can disappear

53.

Why can someone float in the Dead Sea but not in a swimming pool (without using inflatables!) ?

a)

A big mystery

b)

The density of the Dead Sea water is greater than for normal water and is high enough to keep a person floating

c)

The density of the Dead Sea water is lower than normal water and low enough to keep a person floating

d)

Swimming pool water is usually at 500°C and so is less dense than water in the Dead Sea

54.
a)

Battery

b)

Lines

c)

Resistor

d)

bulb

55.
a)

resistor

b)

Ammeter

c)

Voltmeter

d)

Switch

56.
a)

Battery

b)

Lines

c)

Resistor

d)

bulb

57.
a)

resistor

b)

Ammeter

c)

Voltmeter

d)

Switch

58.

What kind of circuit is this?

a)

series

b)

parallel

59.

What type of circuit is show in the image?

a)

Series Circuit

b)

Parallel Circuit

60.

Pick the correct sentence.

a)

This circuit will work because it is a closed circuit.

b)

Energy will freely flow in this circuit.

c)

This circuit will not work because there is no energy source.

d)

This circuit will not work because there is no switch.

61.

Electrical lights will not come on unless their electrical circuit is a --

a)

parallel circuit

b)

series circuit

c)

closed circuit

d)

short circuit

62.
This is the symbol for a ...
a)
Bulb
b)
Battery
c)
Horn
d)
Fuse
63.

All of the following would make a GOOD conductor of electricity except which of the following

a)

A silver key

b)

A copper wire

c)

A glass window

64.

The circuit pictured below is an example of a …?

a)

Series circuit

b)

Parallel circuit

c)

Direct circuit

65.
In a parallel circuit if one of the light bulbs burns out the rest _________.
a)
stop the flow of electricity
b)
 can still light up
c)
 will go out
d)
of the light bulbs burn out also
66.
If one light burns out in this parallel circuit what will happen to the rest?
a)
The others will stay lit
b)
All will go out
c)
Two or more will go out
d)
Check the battery
67.

What type of circuit is shown?

a)

Parallel

b)

Series

c)

Open

68.

What is the power source in this circuit?

a)

Bulb

b)

Switch

c)

Wire

d)

Battery

69.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

70.
Choose the correct sentence.
a)
This circuit will work because it is an open circuit.
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.

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