Perlis Trial 2025 Sains Kertas 1 · Gempur

Sains

Perlis Trial 2025 Sains Kertas 1 · Gempur

• Percubaan Perlis Gempur
• 40 soalan
• Ada penerangan

1

The following information shows the waste of an experiment. | | | |---|---| | R – Bacterial culture solution | S – Distilled water | | T – Chloroform | U – Methylene blue solution | Which of the following wastes can be disposed of into sinks?

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A S and U B R and S C R and U D S and T

T4 Chapter 1.2 Disposal of Waste

2

A small fire has broken out in a house and a boy has been caught in the fire. What is the most suitable fire extinguisher to be used to save the boy?

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A Water B Dry powder C Carbon dioxide D Fire blanket

T4 Chapter 1.3 Fire Extinguishers

3

Aminah had a heart attack and lost consciousness while in a clinic. After confirming that she was not breathing, a nurse performed CPR until she was able to breathe again but was still unconscious. What is the next action the nurse should take?

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A Tilt Aminah's head back B Lift Aminah's body slightly forward C Perform chest compressions until Aminah is conscious D Change Aminah's body position onto her side

T4 Chapter 2.1 Cardiopulmonary Resuscitation (CPR)

4

Diagram 1 shows a student giving emergency aid to his friend. The area between the navel and below the ribs is pressed and jerked upwards with quick force. What is the importance of this action?

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A Relieve the victim's breathing B Increase pressure in the lungs C Increase the diameter of the respiratory tract D Increase air volume in the lungs

T4 Chapter 2.2 Heimlich Manoeuvre

5

Amir ran for 15 minutes. After resting for 1 minute, he counted his pulse for 15 seconds and got a reading of 32 beats. Based on this information, calculate his pulse rate per minute.

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A 62 bpm B 64 bpm C 128 bpm D 143 bpm

T4 Chapter 3.2 Pulse Rate

6

Diagram 2 shows the BMI of two students. | Anis | Suri | |:---:|:---:| | BMI = 18 kg m⁻² | BMI = 32 kg m⁻² | Both students are at risk of developing health problems. Choose the correct match for the health problems that may be suffered by Anis and Suri.

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A Anis: Anaemia — Suri: Depression B Anis: Diabetes — Suri: Fatigue C Anis: Depression — Suri: Anaemia D Anis: Fatigue — Suri: Diabetes

T4 Chapter 3.4 Body Mass Index (BMI)

7

Diagram 3 shows a car that uses green technology. What is the advantage of using substance X?

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A Reduce greenhouse gas emissions B Increase the consumption of black oil C Requires a special lubricant D Increase engine temperature

T4 Chapter 4.5 Transportation Sector

8

Which of the following statements is true about meiosis?

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A Happens in somatic cells B One parent cell produces two daughter cells C Cell division occurs once only D Daughter cells have half the number of chromosomes of the parent cell

T4 Chapter 5.1 Cell Division

9

A student is confirmed to have thalassaemia. What is the factor that causes the disease?

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A Gene mutation B Replication of DNA C Cell division D Chromosome mutation

T4 Chapter 5.3 Mutation

10

Diagram 4 shows a schematic diagram of the inheritance of traits for human hair types. Based on Diagram 4, what are the genotypes of the father and mother?

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A Father: KK — Mother: kk B Father: Kk — Mother: kk C Father: Kk — Mother: Kk D Father: Kk — Mother: KK

T4 Chapter 5.2 Inheritance

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