CLASS 6 SCIENCE – SOLVED SAMPLE PAPER
SECTION A (MCQs)
Q1. Which of the following devices is used for measurement of temperature of human body?
(a) Stethoscope (b) Clinical thermometer (c) Laboratory thermometer (d) None of these
Answer: (b) Clinical thermometer
Q2. In which of the following case evaporation of water will be slowest?
(a) A tray of water kept in sunlight
(b) A kettle of water kept on a burner
(c) A glass of water kept in a room
(d) A bucket of water kept on rooftop
Answer: (c) A glass of water kept in a room
Q3. The method of separation used to separate stones from rice is
(a) Hand-picking (b) Winnowing (c) Threshing (d) All of these
Answer: (a) Hand-picking
Q4. A farmer removing the husk from wheat after cutting the crop
(a) Hand-picking (b) Decantation (c) Winnowing (d) Evaporation
Answer: (c) Winnowing
Q5. Which of the following is not a characteristic of living things?
(a) Growth (b) Reproduction (c) Movement (d) Cutting
Answer: (d) Cutting
Q6. Which of the following is an excretory product in humans?
(a) Oxygen (b) Carbon dioxide (c) Starch (d) Glucose
Answer: (b) Carbon dioxide
Q7. Which of the following gas do we inhale while breathing?
(a) Carbon dioxide (b) Nitrogen (c) Oxygen (d) None
Answer: (c) Oxygen
Q8. Which is not a property of air?
(a) It occupies space
(b) It is transparent
(c) It is a gas
(d) It is a compound
Answer: (d) It is a compound
Q9. Which planet is called the stormy planet?
Answer: (b) Jupiter
Q10. The term ‘blue planet’ indicates presence of
(a) Land (b) Water (c) Oxygen (d) CO₂
Answer: (b) Water
SECTION B (2 MARKS)
Q11. Observe the thermometer and answer the questions.
(i) Name the thermometer.
Answer: Clinical thermometer
(ii) Mention the range.
Answer: 35°C to 42°C
Q12. Why does natural grass feel cooler than plastic grass?
Answer:
Natural grass releases water vapour through transpiration which cools the surroundings. Plastic grass does not release moisture and absorbs heat, so the area becomes warmer.
Q13. How is water present in the solid state in nature?
Answer:
Water is present in solid state as ice, snow and glaciers in mountains and polar regions.
Q14. Name two materials used as filters.
Answer:
- Filter paper
- Cloth (or cotton)
Q15. Why is filtration used to separate sand and water?
Answer:
Filtration is used because sand is an insoluble solid in water and can be separated by passing the mixture through a filter.
Q16. Why is CNG considered a cleaner fuel?
Answer:
CNG produces less smoke and harmful gases, so it causes less air pollution compared to petrol or diesel.
Q17. What are comets?
Answer:
Comets are small celestial bodies made of ice, dust and gases that move around the Sun in long elliptical orbits and often develop a bright tail.
SECTION C (3 MARKS)
Q18. Observe the picture and answer.
(a) Is the girl holding the thermometer properly?
Answer: No.
(b) What mistake is she doing?
Answer: She is holding the thermometer by the bulb and touching it with her hand.
(c) Why is it advised not to do so?
Answer: Because body heat from the hand can change the reading and give an incorrect temperature.
Q19. Ram measured body temperature using a digital thermometer.
(a) Will the temperature of all individuals be same?
Answer: No, it may vary from person to person.
(b) Factors affecting body temperature:
- Physical activity
- Time of day
- Health condition
(c) Normal body temperature:
- 37°C
- 98.6°F
- 310 K
Q20. What is the use of decantation?
Answer:
Decantation is used to separate insoluble solids from liquids by carefully pouring the liquid into another container after the solid settles at the bottom.
Q21. Why is reproduction important for living organisms?
Answer:
Reproduction is important because it helps in producing new individuals, ensuring the continuation and survival of the species.
Q22. Experiment shown in the picture
What do Tara and Vijay want to find out?
Answer: They want to find out how a seed germinates and grows into a plant.
How will they know if they are correct?
Answer: If the seed sprouts and grows into a small plant with roots and leaves, it proves germination.
Q23. Cooking energy picture
(i) Type of energy used:
Answer: Solar energy
(ii) One benefit and one drawback:
Benefit:
Solar energy is clean and renewable.
Drawback:
It cannot be used at night or on cloudy days.
Q24. What are renewable or inexhaustible resources? Give examples.
Answer:
Renewable resources are natural resources that do not get exhausted and can be used again and again.
Examples:
- Solar energy
- Wind energy
SECTION D (5 MARKS)
Q25. True / False
(a) Ice and water are the same substance in different states.
True
(b) Water vapour is visible in the air.
False
(c) A mosquito goes through three stages in its life cycle.
False
(d) Living beings respond to stimuli.
True
(e) Amoeba reproduces by budding.
False
Q26. Match the Following
| A | B |
|---|---|
| Water cycle | (b) Interconversion of water in various forms |
| Precipitation | (c) Usually results in rain |
| Rain | (a) Feeds nearly all other water sources |
| Photosynthesis | (e) Food production in plants |
| Metamorphosis | (d) Life cycle change in frogs |
Q27 Passage Answers
1. What does “Curiosity Beyond Earth” mean?
It means the desire to know about space and things beyond our planet.
2. Why did scientists start exploring space?
Because they were curious to learn about planets, stars and the Moon.
3. What do astronauts do in space?
Astronauts perform experiments and make new discoveries.
4. What are scientists searching for on Mars?
They are searching for signs of life.
5. How does space exploration help us?
It gives new knowledge and helps us understand our planet better.
