Download Exam papers for Grade 8 revision- All subjects, End Term 2 2025
2025 Term 2 Integrated Science Section 1 Sample paper
This paper consists of 12 printed pages. Candidates should check the question paper to ascertain that all the pages are printed as indicated and that no questions are missing.
© 2025 The Kenya National Examination and Assessment Prediction Series
SECTION A (30 marks)
Answer ALL the questions in this section.
1. During a school science exhibition, learners presented projects on topics like
‘photosynthesis in plants’, ‘how batteries produce electricity’, and ‘properties of different compounds’. Which component of Integrated Science was NOT clearly represented in these projects?
A. Biology
B. Physics
C. Chemistry
D. History
2. A local community faces recurring problems such as widespread waterborne diseases, soil erosion leading to poor harvests, and frequent power outages. How can the study of
Integrated Science empower this community to address these issues effectively?
A. By teaching them only historical facts about past epidemics.
B. By focusing solely on memorizing scientific formulas without practical application. C. By providing them with a comprehensive understanding of interconnected
environmental, health, and energy solutions. D. By encouraging them to rely only on external aid without understanding local resources.
3. While preparing for a laboratory practical, a learner observed the apparatus below.
W
This part marked W is:
A. Air hole B. Chimney
C. Colar D. Base
4. A laboratory assistant accidentally spills a highly acidic solution on the bench-top, causing it to sizzle and damage the surface. The hazard symbol that would have been on the bottle for this chemical is:
A
B
C
D
5. During a Biology lesson, learners were asked to identify the part of the cell marked m.:
The part marked Z is called?
A. Cytoplasm
B. Sap vacuole
C. Chloroplast
D. Nucleus
6. During a practical session, a learner accidentally slips on a wet floor and falls, twisting their ankle. The immediate first aid measure for a sprain would be to:
A. Apply heat to the affected area.
B. Elevate the injured limb.
C. Force the learner to walk to check for mobility.
D. Ignore the injury and continue with the experiment.
7. While heating a liquid in a test tube, a learner holds the test tube too close to the flame and suffers a burn. The first aid for a minor burn involves:
A. Applying ice directly to the burn.
B. Applying butter or oil to the burn.
C. Running the burned area under cool running water for at least 10 minutes.
D. Breaking any blisters that form.
8. Before starting an experiment involving chemicals, the teacher reminded the learners to wear eye protection. This safety measure is important to prevent:
A. Falls B. Scalds
C. Cuts D. Eye injuries from chemical splashes
9. A Grade 8 learner is tasked with accurately measuring 50.0 mL of a liquid for an
experiment. Which of the following laboratory apparatus would be most appropriate for this task?
A. Beaker B. Conical flask C. Measuring cylinder D. Test tube
10. A group of learners is studying the growth of a plant over several weeks. They regularly measure the plant’s height and the number of leaves it develops. What basic science skill are they primarily using?
A. Inferring
B. Predicting
C. Communicating
D. Measuring and Observing
11. A biologist wants to observe the internal structures of a plant cell in detail. Which laboratory instrument would provide the best magnification for this purpose?
A
B
C
D
12. A learner needs to heat a substance gently and evenly using a Bunsen burner. They should adjust the air hole to produce a:
A. Roaring blue flame
B. yellow flame
C. Short, pale blue flame
D. Tall, orange flame
13. Jane prepared a salad by mixing chopped tomatoes, onions, and cucumbers. She could easily distinguish each component in the mixture. This type of mixture is best described as:
A. Homogeneous B. Solution
C. Heterogeneous D. Colloid
14. During a chemistry lesson, a teacher demonstrates separating different pigments from a plant extract using paper. Which separation technique is being demonstrated?
A. Filtration B. Distillation
C. Chromatography D. Crystallization
15. A chemist needs to obtain pure water from seawater. Which separation technique would be most effective for this purpose?
A. Filtration
B. Simple distillation
C. Sublimation
D. Solvent extraction
16. A learner tests a solution with red litmus paper, and it remains red. When tested with blue litmus paper, it turns red. This indicates the solution is:
A. A base B. Neutral
C. An acid D. An indicator
17. A gardener notices that his soil is very acidic and wants to raise its pH to make it more suitable for growing vegetables. Which common substance, known for its basic properties, could he add to the soil?
A. Vinegar B. Lemon juice C. calcium hydroxide D. Sulphuric acid
18. During a hot afternoon, a learner notices their skin is wet with sweat.
A
B C D
Which part of the human skin is primarily responsible for producing and secreting sweat?
A. A B. B C. C D. C
19. A patient is diagnosed with an infection in the tube labelled X.
X
Which part of the urinary system is affected? A. Ureter B. Urethra C. Kidney D. Bladder
20. A person consumes a diet very high in protein and does not drink enough water. This habit increases their risk of developing which common kidney disorder?
A. Urinary tract infection
B. Kidney failure
C. Kidney stones
D. Bladder cancer
21. A solar panel installed on a house roof is an example of a device that converts light energy from the sun into:
A. Heat energy B. Sound energy C. Mechanical energy D. Electrical energy
22. A learner sets up a simple electric circuit with a battery, a switch, and a light bulb. When the switch is closed, the circuit is:
A. Open, and the bulb will not light.
B. Closed, and the bulb will light.
C. Short-circuited, and the bulb will not light. D. Overloaded, and the bulb will burn out.
23. Which of the following is a critical electrical safety measure to prevent electrocution when handling electrical appliances?
A. Using damaged power cords if the appliance still works.
B. Overloading power sockets with many appliances.
C. Always ensuring your hands are dry before touching electrical switches or plugs.
D. Inserting metallic objects into electrical sockets to test them.
24. A learner observed that a bar magnet attracted small iron nails but had no effect on a copper wire.
Experiment A
Experiment B:
This demonstrates that iron nails are:
A. Non-magnetic materials.
B. Magnetic materials.
C. Electromagnets.
D. Temporary magnets.
25. When a bar magnet is freely suspended, it always aligns itself in a specific direction. This property is known as the:
A. Repulsive property.
B. Inductive property.
C. Attractive property.
D. Directive property.
26. An atom of a certain element has 10 protons and 10 neutrons. What is its atomic number?
A. 20
B. 10
C. 0
D. 5
27. Which of the following elements is correctly represented by its chemical symbol?
A. Hydrogen – H
B. Sodium – So
C. Aluminium – Al
D. Nitrogen – Ni
28. A learner observes water boiling in a kettle, producing steam.
This change is an example of:
A. A chemical change and is temporary. B. A physical change and is permanent. C. A physical change and is temporary. D. A chemical change and is permanent.
29. A fire started in a rubbish bin filled with paper and cloth.
The fire triangle components present were fuel (paper, cloth), heat (from ignition), and oxygen (from air). To control this fire by removing the fuel, one could:
A. Pour water on it.
B. Cover it with a fire blanket.
C. Remove other flammable materials nearby. D. Use a CO2 extinguisher.
30. During a biology practical, a learner prepared a temporary slide of an onion epidermal cell. When observing it under the microscope, they noted the presence of a cell wall and a distinct nucleus. Which other basic component of a cell would also be clearly visible?
A. Chloroplasts
B. Mitochondria
C. Cytoplasm
D. Endoplasmic Reticulum
