Updated: 19 October 2026
These short situations help Grade 6 learners connect science ideas to everyday evidence. They can be discussed orally before a learner writes an answer. The set supports KPSEA preparation but does not claim to reproduce the official assessment format.
On this page: original practice, explained answers and 20 short FAQs. Complete the tasks before reading the answers.
Explain the reason for a choice
A science answer often needs more than naming an object. If asked why a material is suitable, connect its property to the purpose. If asked what a result shows, refer to the observation before making a conclusion.
Use safe classroom discussion
The questions can be answered using the information supplied. Practical demonstrations should use the teacher’s approved materials and procedures. Do not ask a child to test unknown substances, mains electricity or unsafe equipment.
Build a correction notebook
Record the original idea, the corrected explanation and a new everyday example. Revisit the idea after a few days. This is more useful than memorising a long answer without understanding it.
Practice questions and explained answers
1. Why is a waterproof material useful for a raincoat?
Show suggested answer
It prevents rainwater from passing through easily and helps keep the wearer dry.
2. A seedling is watered daily but kept in darkness. Why might it grow poorly?
Show suggested answer
It lacks enough light for healthy growth and food production through photosynthesis.
3. A bulb in a simple cell circuit does not light. Name one connection check.
Show suggested answer
Check that the conducting path is complete and the wires contact the cell and bulb terminals correctly.
4. Which tool measures the length of a desk more appropriately: a ruler or a thermometer?
Show suggested answer
A ruler, because it measures length. A thermometer measures temperature.
5. Why separate reusable paper from food waste?
Show suggested answer
It keeps reusable material cleaner and helps suitable waste handling or recycling.
6. Two equal wet cloths are placed in moving and still air. Which may dry faster? Explain.
Show suggested answer
The cloth in moving air may dry faster because air movement removes moist air near its surface.
7. Why wash hands before handling food?
Show suggested answer
It reduces the transfer of dirt and harmful microorganisms to the food.
8. A metal spoon becomes warm in hot soup. What process transfers heat along it?
Show suggested answer
Conduction transfers heat through the metal.
9. Why should a learner report a cracked electrical cable?
Show suggested answer
Damaged insulation can expose a hazardous conductor; the equipment should not be used.
10. An investigation changes both water and light at once. Why is the result difficult to explain?
Show suggested answer
It is unclear which change caused the outcome. A fair comparison changes one relevant factor while keeping others comparable.
Frequently asked questions
Is a material chosen only by its colour?
No. Its properties must suit the function.
Does watering replace the need for light?
No. Plants need appropriate conditions, including light, for healthy growth.
Can pupils test mains sockets?
No. Use only teacher-approved safe classroom equipment.
Why name the measured quantity?
It helps choose the appropriate instrument and unit.
Does recycling mean all waste goes together?
No. Materials need suitable separation and handling.
Can more than one factor affect drying?
Yes. Temperature, air movement and exposed area can all matter.
Is handwashing only about visible dirt?
No. Hands can carry microorganisms that are not visible.
What is conduction?
Heat transfer through a material without the whole material flowing.
What makes an explanation scientific?
It connects evidence to a relevant idea and avoids unsupported claims.
What should I do when a result surprises me?
Check the procedure and discuss it with the teacher rather than inventing a result.
Why is waterproof different from absorbent?
A waterproof material resists water passing through; an absorbent one takes up water.
Can a plant-light test change soil as well?
That would make the effect of light harder to isolate.
Why check a bulb connection before replacing it?
A broken circuit can prevent a working bulb from lighting.
Is a thermometer a length instrument?
No. It measures temperature.
What does reusing paper involve?
Using suitable paper again for a useful purpose rather than discarding it immediately.
Must drying comparisons use equal cloths?
Comparable cloths help make the effect of the changed condition clearer.
Does heat travel only through metals?
No, but metals are often good thermal conductors.
Should a damaged cable be taped by a pupil?
No. Report it and leave repair to an authorised adult.
Can an explanation mention several factors?
Yes, when relevant, but distinguish them from what was actually tested.
What is a fair comparison?
One that controls relevant conditions while examining the intended difference.
Related revision resources
- Grade 6 Science revision
- KPSEA revision papers
- 2026 GRADE 6 NOTES
- KPSEA Mathematics: Ten-Question Mixed Revision Check
- KPSEA English Reading: Original Passage and Answer Practice
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For official assessment notices and examination instructions, consult KNEC. These practice answers are not official scoring guides.
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