Name:……………………………………………….. Class: ………….......

SMK JULAU (YEB 6201)

1ST

MID TERM EXAMINATION 2007

SCIENCE FORM 4

(1 hour 30 minutes)

1. Which of the following statement describes accurately the

meaning of science?

A Knowledge about the arranged environment which is

developing with discovery.

B Research on space.

C Explanation on environmental pollution.

D Creation of sophisticated equipment.

2. W : Making a hypothesis

X : Collecting data

Y : Controlling data

Z : Identifying problem

W, X, Y and Z are steps involved in the scientific

investigation. Which of the following sequence is correct?

A Z, W, Y, X C Z, Y, W, X

B W, Z, Y, X D Y, Z, W, X

3. In the scientific investigation, how is a formed hypothesis

tested?

A conduct an experiment

B identify the problem

C makes an inference

D makes a conclusion

4. Which of the following has the most accurate explanation

for the meaning of hypothesis?

A Hypothesis is a statement about the relationship

between variable that is manipulated and variable that

responds

B Hypothesis is a statement about an investigation

whose truth has been proved

C Hypothesis is the results of an investigation

D Hypothesis is the interpretation of the data collected

during an investigation

5. Why must the methods and techniques used be planned

prior to a scientific investigation?

A To ensure that the data collected are more accurate

B To ease the collection of data

C To collect the data in a faster way

D To conduct an investigation easily

6.

The diagram shows the results when two blocks, M and N,

are put into a beaker of cooking oil. Which of the

following is true?

I M is less dense

II N has the highest density

III The density of cooking oil is higher than M

A I only C II and III only

B I and II only D I, II and III

7. Which of the following factors influence the density of a

material?

I Volume

II Shape of the material

III Area of the surface

A I only C II and III only

B I and II only D I, II and III

8.

The above diagram shows the rate of enzyme reaction at a

range of temperatures. What is the conclusion which can

be made?

I Temperature does not affect the rate of enzyme

reaction

II The rate of enzyme reaction increases in the

temperature range of 0 C - 30 °C

III The rate of enzyme reaction reduces after 30 °C -

40 °C

A I only C II and III only

B I and II only D I, II and III

9. Which of the following are scientific and noble values?

I Critical and analytical thinking

II Rationale

III Interest and curiosity

A I and II only C II and III only

B I and III only D I, II and III

10. Which of the following is are carried out as scientific

method?

I Predicting

II Observing

III Grateful

A I and II only C II and III only

B I and III only D I, II and III

11.

The above diagram shows two types of cells, P and Q, in

the human body. Which of the following represents the

nerves cell?

P Q

A Sensory neurone Relay neurone

B Relay neurone Motor neurone

C Motor neurone Sensory neurone

D Motor neurone Relay neurone

12. Which of the following is an involuntary action?

A Coughing C Smelling

B Hearing D Talking

13.

The diagram above shows the main endocrine glands in the

body. Which of the glands, P, Q, R and S, functions when

one eats honey in big quantities?

A P C R

B Q D S

14.

The diagram above shows the movement of impulse from

the sensory organ to the muscle of a boy who is writing.

Which of the following represents the nervous system X?

A Autonomy of the nervous system

B Central nervous system

C Peripheral nervous system

D Somatic nervous system

15.

A student blinks his eyes to avoid a small insect from

entering the eyes. Which of the following labelled section

in the diagram is responsible in that response?

A P C R

B Q D S

16.

Gland Y in the above diagram has the function of

A stimulating growth

B preparing the uterus to receive ovum

C controlling the sugar level in the blood

D increasing the ability of the body to cope with stress

17. Which of the following is not true about the spinal cord?

A Grey matter is situated next to the white matter

B It is part of the central nervous system

C It is connected to the medulla oblongata

D It controls reflex action

18.

Based on the above diagram, reduction of hormone from

which gland will cause a person to suffer from goitre?

A I

B II

C III

D IV

19. Which part of the brain controls the mind?

A Cerebrum

B Cerebellum

C Medulla oblongata

D Spinal nerves

20.

The diagram shows a sensory neurone. The section

labelled X is known as

A dendron

B axon

C synapse

D cell body

21. A tranquillizer which is taken in high doses can cause

I drowsiness

II Hindrance of muscle coordination

III blurred vision

A I only C II and III only

B II only D I, II and III

22. Section X forms the largest part of the brain. Which of the

following are the functions of X?

I Controls the mental activity

II Controls voluntary action

III Controls the equilibrium of the body

A I only C I and II only

B II only D I, II and III

23.

The diagram above shows the cross-section of the spinal

cord. Which of the following is labelled correctly?

I Sensory neurone

II Motor neurone

III Relay neurone

A III only C II and III only

B I and II only D I, II and III

24. Which of the following is categorised under the peripheral

nervous system?

I Cranium nerves

II Spinal nerves

III Spinal cord

A I only C II and III only

B I and II only D I, II and III

25. The effects of alcohol to humans include

I cirrhosis of the liver

II disturbance of voluntary actions

III stomach ulcer

A II only C I and III only

B III only D I, II and III

26. Which of the following is true about the human nervous

system?

I Consist of glands without ducts

II Impulse is sent chemically through the blood

III Impulse moves very fast

A I only C I and III only

B III only D I, II and III

27. Which of the following is the effect of addiction to

morphine?

I Shivering

II Nightmares

III Insomnia

A II only C I and III only

B III only D I, II and III

28. Reflex response does not involve the

I brain

II muscle

III spinal cord

A II only C I and III only

B III only D I, II and III

29. Where can proprioceptors are found?

I Joint

II Ligament

III Brain

A I only

B II only

C I and II only

D II and III only

30. One's mental health can be influenced by I brain injury II drug abuse

III painful experiences

A I only

B I and II only

C II and III only

D I, II and III

Section B: Answer all questions

1. You are given some steps in a scientific investigation. Arrange them in the correct sequence.

Step Correct sequence

Identify the variables

Control the variables

Identify the problem

Carry out the investigation

Prepare a report

Make a hypothesis

Plan the investigation

2. Write the parts of the neurone based on the given functions in the table below

Part of neurone Function

Controls all the activities of neurons

Receives impulses and transmits them to the Dendron

Receives impulses and transmits them to the cell body

Transmits impulses out of the cell body

Axon insulator to prevent leakage of impulses. Increases the

speed of impulse transmission