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Worksheets

Science Sem 2 year 4

Total questions: 62

Worksheet time: 47mins

Name
Class
Date
1.
What is an observation?
a)
A scientific statement based on ideas
b)
Using your senses to notice what is going on around you
c)
A prediction of what will happen in the future
2.

Observations use what?

a)

Graphs

b)

Your 5 senses

c)

Scientists

d)

Predictions

3.
Which statement is an observation?
a)
Her favorite color must be brown.  
b)
Her hair is brown. 
c)
Her hair is brown because she dyed it. 
d)
Her hair has not been cut in two years. 
4.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Use and handle apparatus and subtance

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

5.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Use and handle apparatus and subtance

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

6.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Store apparatus

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

7.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Use and handle apparatus and subtances.

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

8.

Which of the following apparatus is used to measure the volume of liquid?

a)

Stopwatch

b)

Thermometer

c)

Measuring cylinder

9.
The basketball is orange with black lines.  
a)
Observation
b)
Inference
10.
Mrs. Perry's plant has 6 leaves.
a)
Observation
b)
Inference
11.
What is an inference? 
a)
Just a guess.
b)
A statement based off of your observations. 
c)
The same as an observation. 
d)
Examples of something. 
12.
Information that you gather with your senses.
a)
observation
b)
variable
c)
hypothesis
d)
testable question
13.

Which of the following variable is always measured in an experiment?

a)

Manipulated variable

b)

Responding variable

c)

Reaction variable

d)

Constant variable

14.

Diagram shows the breathing organ of an animal. Which animal uses this organ for breathing?

a)

Cat

b)

Tadpole

c)

Grasshopper

d)

Frog

15.

The figure shows two animals. Both animals breathe using....

a)

gills

b)

spiracle

c)

lungs

d)

moist skin

16.

The figure shows two animals. Both animals breathe using....

a)

gills

b)

spiracle

c)

lungs

d)

moist skin

17.

Choose animal that breathe using lungs..

a)
b)
c)
d)
18.

Which animal has two breathing organs?

a)
b)
c)
d)
19.

What is the breathing organ for this animal?

a)

lungs

b)

spiracle

c)

gills

d)

moist skin

20.

Name the organs involved during breathing

a)

Nose, Heart and lungs

b)

Nose , Trachea and Lungs

c)

Lungs and Kidney

21.

Name the organ

a)

Lungs

b)

Heart

c)

Trachea

22.

The picture shows human _____

a)

Exhale

b)

Inhale

23.

The picture shows human _____

a)

Inhale

b)

Exhale

24.

Choose the correct passage air during exhale.

a)

Lungs - Trachea - Nose

b)

Nose - Trachea - Lungs

c)

Lungs - Nose - Trachea

25.

Choose the correct condition of the chest during inhalation

a)

Chest moves upwards

b)

Chest moves downwards

c)

Chest moves upwards and downwards

26.

The rate of breathing depends on the type of activity that is carried out.

a)

True

b)

False

27.

Which activity is high rate of breathing?

a)
b)
c)
28.

Which activity is low rate of breathing?

a)
b)
c)
29.

Choose 3 situation which will give bad effect on human breathing.

a)
b)
c)
d)
30.

Choose animals that breathe using spiracles

a)
b)
c)
d)
31.

Choose animals that breathe using moist skin

a)
b)
c)
d)
e)
32.

Choose animals that breathe using gills

a)
b)
c)
d)
e)
33.

There are animals that have two organ breathing, for example frog. Why?

a)

These animals have super power

b)

These animals live on land and in water

c)

These animals eat meat

34.

How do plants respond to gravity?

a)

The roots and stem both

grow downward.

b)

The roots and stem both

grow upward.

c)

The roots grow downward and

the stem grows upward.

d)

The roots grow upward and the

stem grows downward.

35.

Diagram 1 shows a piece of plywood covering a patch of grass.

After a few days, it is found that the grass underneath the piece of plywood has turned yellowish because...

a)

the grass has not received air

b)

the grass has not received water

c)

the grass has not received sunlight

d)

the grass has not been given fertilisers

36.

Part of plants that give response towards light

(a)  

37.

The roots of a plant grow down because of what stimuli?

a)

Gravity

b)

Light

c)

Temperature

d)

All of the above

38.

How do stems respond to light?

a)

It grows away from the light

b)

It grows towards the trees

c)

It grows towards the roots

d)

It grows towards the light

39.

Cahaya Matahari + Air + Oksigen = Makanan

Proses tersebut dipanggil sebagai

Sunlight + Water + Oxygen = Food

What is this process called?

a)

Gerak balas terhadap rangsangan

Response to Stimuli

b)

rangsangan

Stimuli

c)

Fotosintesia

Photosynthesis

d)

Suhu

Temperature

40.

Tumbuhan di dalam Rajah di atas bergerak balas terhadap..

The plants in the above diagram respond to

a)

Cahaya

Light

b)

Air

water

c)

Sentuhan

Touch

d)

Graviiti

Gravity

41.

Apakah jenis rangsangan yang berkaitan dengan pokok yang ditunjukkan di atas?

What is the stimuli related to the tree shown above?

a)

Air

Water

b)

Cahaya

Light

c)

Sentuhan

Touch

d)

Graviti

Gravity

42.

Air ,graviti ,cahaya matahari dan______adalah gerak balas tumbuhan terhadap ransangan


Water, gravity, sunlight and .......................are the plant's response to stimulii

a)

tanah

soil

b)

udara

air

c)

sentuhan

touch

d)

akar

root

43.

What type of stimuli that cause the following response in this plant?

a)

light

b)

gravity

c)

touch

d)

water

44.

Diagram shows an observation made at the end of experiment. What conclusion can be made from the observation?

a)

The shoot respond to food

b)

The root respond to gravitational pull

c)

The leaves respond to touch

d)

The shoot respond to water

45.

Diagram shows the condition of plant X. What should be done so that the plant will grow straight upward?

a)

Place it in a dark room

b)

Always change the position of the plant inside the box

c)

Place the plant outside the box

46.

What can we conclude based on the condition of the plant in the diagram?

a)

The roots respond to gravity

b)

The shoots respond to sunlight

c)

The leaves respond to touch

47.

What is photosynthesis?

a)

The process in which humans eat their food.

b)

When a photographer takes a photo.

c)

To get your pictures from the photo lab.

d)

The process in which plants make their food.

48.

Glucose is a products of photosynthesis. It is stored in a form of

a)

Oxygen

b)

Water

c)

Starch

d)

Carbon dioxide

49.

The green substances in leaves that absorbs energy from the sun

a)

Carbon Dioxide

b)

Chlorphyll

c)

Water

d)

Energy

50.

What are the products of photosynthesis?

a)

water and carbon dioxide

b)

oxygen and glucose

c)

oxygen and carbon dioxide

d)

oxygen and water

51.

What gas do plants need in order to perform photosynthesis?

a)

oxygen

b)

carbon dioxide

c)

nitrogen

d)

hydrogen

52.

Why do plants need sunlight for photosynthesis?

a)

The light creates heat needed for photosynthesis to occur

b)

The light provides the energy needed to power photosynthesis

c)

Plants can't absorb carbon dioxide in darkness

d)

Plants can't absorb water in darkness

53.

What is the aim of the investigation?

a)

Light travels in a straight line

b)

Light can be reflected

c)

Light can be refracted

54.

What will happen if one of the cardboard is shifted slightly to the right?

a)

The torch can be seen

b)

The torch cannot be seen

55.

What is the type of this object?

a)

opaque

b)

transparent

c)

translucent

56.

What is the meaning of transparent?

a)

Allows all the light to pass through

b)

Allows some light to pass through

c)

Does not allow any light to pass through

57.

What is the clarity of the shadow formed on a book?

a)

Clear

b)

Less clear

c)

No shadow

58.

This situation shows that

a)

light travels in a straight line

b)

light is everywhere

c)

light penetrates certain objects

d)

light is produces by the Sun

59.

In an experiment, the shadow was formed but not so clear. Which type of object do you think was used in this experiment?

a)

Coloured paper

b)

Manila card

c)

Wooden block

d)

A transparent plastic

60.

What conclusion can be made from this investigation?

a)

Light travels in parallel

b)

Light travels in a straight line

c)

Light cannot pass through and opaque object

d)

Light cannot bend

61.

This investigation is carried out to show that

a)

light travels in a straight line

b)

light can be seen through the holes

c)

light penetrates a transparent object

d)

light travels in many ways

62.

There are two factors that affect the size of shadow. What are the factors? Tick the correct answers.

a)

Size of the screen

b)

Distance of object from the screen

c)

Distance of object from the light source

d)

Size of the light source