Melaka Trial 2026 Science Kertas 1

Science

Melaka Trial 2026 Science Kertas 1

• Melaka Trial
• 40 questions
• With explanations

1

Which of the following is the color label for a foam type fire extinguisher?

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A Black B Cream C Blue D Red

T4 Chapter 1.3 Fire Extinguishers

2

Diagram 1 shows a man performing an emergency aid procedure. What is the purpose of this procedure?

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A To decrease air volume in the lungs B To increase air volume in the lungs C To increase the diameter of the respiratory tract D Pushing foreign objects out of the respiratory tract

T4 Chapter 2.2 Heimlich Manoeuvre

3

Diagram 2 shows a conversation between two women. What is the BMI for Anita? > BMI = Body mass (kg) ÷ (Height)² (m²)

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A 23.7 B 37.7 C 60.0 D 95.4

T4 Chapter 3.4 Body Mass Index (BMI)

4

Diagram 3 shows a Green Technology application method for managing food waste to produce an agricultural product. Which of the following is related to the method?

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A Prevention and reduction B Sorting and recycling household waste C Treatment and processing (biological process) D Refuse, Reduce, Reuse, Recycle and Recovery (5R)

T4 Chapter 4.3 Waste and Wastewater Management Sector

5

Which of the following is a greenhouse gas?

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A Nitrogen oxide B Sulphur dioxide C Carbon monoxide D Sulphur trioxide

T4 Chapter 4.5 Transportation Sector

6

Which of the following is the genotype for individual suffered from Turner syndrome?

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A 44 + XX B 44 + XO C 44 + XY D 44 + XXY

T4 Chapter 5.3 Mutation

7

Table 1 shows the genotypes of two couples who have different hair colors. | Couples | Father's genotype | Mother's genotype | | --- | --- | --- | | P | HH | hh | | Q | hh | hh | Key: H: Black hair; h: Blonde hair What is the probability ratio of black hair to blonde hair in the second filial generation (F₂) when the child of couple P marries the child of couple Q?

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A 1 : 1 B 3 : 1 C 1 : 3 D 4 : 0

T4 Chapter 5.2 Inheritance

8

Which of the following is an example of discontinuous variation?

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A Type of blood group B Height C Body weight D Size of sole

T4 Chapter 5.5 Variation

9

Diagram 4 shows the movement of muscles to bend the arm. Which of the following is correct?

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A Muscle N: Contract; Muscle M: Contract B Muscle N: Contract; Muscle M: Relax C Muscle N: Relax; Muscle M: Relax D Muscle N: Relax; Muscle M: Contract

T4 Chapter 6.2 Human Movement and Growth

10

Diagram 5 shows the additional support for a plant. Which of the following is an additional support for the plant?

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A Clasping roots B Hollow stems C Prop roots D Tendrils

T4 Chapter 6.3 Support, Growth and Stability in Plants

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