Final Exam Paper Science: Set 1

Time: 3 Hours
Maximum Marks: 80

General Instructions

The question paper consists of 34 questions divided into four sections: A, B, C, and D.

• All questions are compulsory.
• Section A: Questions 1 to 15 are multiple-choice questions, carrying 1 mark each. Select the most appropriate response.
• Section B: Questions 16 to 22 are short-answer questions, carrying 2 marks each.
• Section C: Questions 23 to 31 are short-answer questions, carrying 4 marks each.
• Section D: Questions 32 to 34 are short-answer questions, carrying 5 marks each.

Syllabus: The Final Exam Question Paper is framed from the following chapters: Temperature and its Measurement, A Journey through States of Water, Methods of Separation in Everyday Life, Living Creatures: Exploring their Characteristics, Nature's Treasures, Beyond Earth

Section A

Q1. What is the SI unit of temperature? (1 mark)
(a) Degree Celsius
(b) Degree Fahrenheit
(c) Kelvin
(d) Joule

Q2. A device that measures temperature is called a: (1 mark)
(a) Barometer
(b) Speedometer
(c) Thermometer
(d) Odometer

Q3. The process of conversion of water into its vapour state is called: (1 mark)
(a) Condensation
(b) Freezing
(c) Evaporation
(d) Melting

Q4. Which method is used for separating heavier and lighter components of a mixture by wind or by blowing air? (1 mark)
(a) Threshing
(b) Handpicking
(c) Sieving
(d) Winnowing

Q5. What are the tiny pores on the surface of leaves that help plants in taking air in and out called? (1 mark)
(a) Gills
(b) Stomata
(c) Lungs
(d) Alveoli

Q6. Which stage in the life cycle of a frog is characterized by having a tail and no legs? (1 mark)
(a) Froglet
(b) Adult frog
(c) Tadpole (early stage)
(d) Embryo

Q7. What is moving air commonly called? (1 mark)
(a) Breeze
(b) Wind
(c) Gas
(d) Vacuum

Q8. Which of the following is an example of a renewable natural resource? (1 mark)
(a) Coal
(b) Fossil fuels
(c) Air
(d) Petroleum

Q9. A planet is a large object that is nearly: (1 mark)
(a) Rectangular
(b) Cubical
(c) Spherical
(d) Flat

Q10. Rocky and irregular small objects that revolve around the Sun, many of which lie between Mars and Jupiter, are called: (1 mark)
(a) Comets
(b) Dwarf planets
(c) Asteroids
(d) Moons

Q11. Why are digital clinical thermometers replacing older mercury thermometers? (1 mark)
(a) Mercury is too cold.
(b) Mercury is too expensive.
(c) Mercury is toxic and difficult to dispose of if broken.
(d) Mercury provides inaccurate readings.

Q12. The process of conversion of a solid state (e.g., ice) into a liquid state (water) is called: (1 mark)
(a) Condensation
(b) Evaporation
(c) Melting
(d) Freezing

Q13. The process where the heavier insoluble component settles down at the bottom of a liquid is called: (1 mark)
(a) Filtration
(b) Decantation
(c) Sedimentation
(d) Churning

Q14. When a plant is kept in sunlight only from one direction, the shoot grows: (1 mark)
(a) Downwards
(b) Towards the light
(c) Away from the light
(d) Sideways

Q15. How long does the Moon take to complete one revolution around the Earth? (1 mark)
(a) 365 days
(b) About 24 hours
(c) About 76 years
(d) About 27 days

Section B

Q16. Name the three most-used scales of temperature and the unit denoted for each. (2 marks)

Q17. Define Evaporation and Condensation. (2 marks)

Q18. Describe the method of Handpicking and state the conditions when it is a convenient method of separation. (2 marks)

Q19. What two conditions are essential for the germination of most seeds? Explain why water is necessary in this process. (2 marks)

Q20. State the composition of air, specifying the approximate percentage of its three main components. (2 marks)

Q21. Define Planets and Satellites. Give one example of each. (2 marks)

Q22. Explain why the roots of a plant grow downwards and the shoot grows upwards, even if the plant is inverted. (2 marks)

Section C

Q23. Describe the clinical thermometer, mentioning its primary use, common temperature scale, and why digital versions are preferred today. (4 marks)

Q24. Explain how heating affects the three states of water. Describe what happens when
 (a) ice is heated, and
 (b) water is further heated to form steam. Also state the terms used for these changes of state. (4 marks)

Q25. Define Sedimentation and Decantation. Give one example from everyday life where these two processes are used together. (4 marks)

Q26. List and briefly describe four essential features or characteristics common to all living beings. (4 marks)

Q27. Explain the importance and dual role of forests in relation to soil, and discuss why their conservation is necessary. (4 marks)

Q28. Explain how ancient navigators used constellations for finding directions. Describe how to locate the Pole Star using the Big Dipper constellation. (4 marks)

Q29. How does heat transfer by radiation differ from conduction and convection? Provide one example for each mode of transfer. (4 marks)

Q30. Rahul's school is 4.2 km away from his house. He took 21 minutes to reach the school by cycling. Calculate the speed of Rahul's bicycle in meters per second (m/s). (4 marks)

Q31. List the eight planets of the Solar System in order of their increasing distance from the Sun. Briefly state the main characteristics of the outer four planets. (4 marks)

Section D

Q32. Describe the four stages of the mosquito life cycle. Explain why preventing stagnant water is crucial for controlling mosquito breeding, including the use of kerosene oil. (5 marks)

Q33. Explain the Filtration method of separation in detail. What materials can be used as filters, and why is filtration often preferred over decantation? (5 marks)

Q34. What are natural resources? Explain the difference between renewable and non-renewable natural resources with examples. Why is it important to conserve non-renewable resources? (5 marks)

​

Now, you can access  the solutions from here.