Class 9 Question Paper 2025 Science

ANNUAL EXAMINATION

Question Paper
2025
NCERT BASED SYLLABUS

FOR CBSE AND STATE BOARD
FOLLOWING NCERT

KVS QUESTION PAPERS

SESSION ENDING EXAMINATION 2024-25
CLASS: IX ​ ​ ​ ​ ​ ​ ​ ​ SUBJECT: SCIENCE
TIME: 3 HOURS​ ​ ​ ​ ​ ​ ​ M. MARKS: 80

GENERAL INSRUCTIONS:
1. This question paper consists of 39 questions in 5 sections.
2. All questions are compulsory. However, an internal choice is provided in some questions. A
student is expected to attempt only one of these questions.
3. Section A consists of 20 Objective Type questions carrying 1 mark each.
4. Section B consists of 6 Very Short questions carrying 02 marks each. Answers to these
questions should in the range of 30 to 50 words.
5. Section C consists of 7 Short Answer type questions carrying 03 marks each. Answers to these
questions should in the range of 50 to 80 words.
6. Section D consists of 3 Long Answer type questions carrying 05 marks each. Answer to these
questions should be in the range of 80 to 120 words.
7. Section E consists of 3 source-based/case-based units of assessment of 04 marks each with
sub-parts.

Q Section-A (20x1 = 20 marks) Marks
No

1 Which of the following is the high yielding variety of cow? 1
(a) Red Sindhi. (b). Holstein. (c).Dorset. (d).Sahiwal.

2 When we change feeble sound to loud sound, we increase its: 1
(a) frequency. (b) amplitude. (c) velocity. (d) wavelength

3 The inertia of an object tends to cause the object.: 1
(a) to increase its speed. (b) to decrease its speed.
(c) to resist any change in its state of motion. (d) to decelerate due to friction

4 Which of the following settle down when allowed to stand on disturbed for 1
sometime?
(a) copper sulphate solution. (b) blood.
(c) muddy water. (d) solution of egg albumin in water

5 A scientist observes a plant cell with a large central vacuole and chloroplasts. 1
Which of the following functions are primarily carried out by these structures?
A) The central vacuole stores water, and the chloroplasts perform
photosynthesis
B) The central vacuole stores proteins, and the chloroplasts store water
C) The central vacuole produces proteins, and the chloroplasts store starch
D) The central vacuole stores energy, and the chloroplasts store proteins

6 Which experiment is correct to measure melting point of ice 1

(a) both P&Q. (b) P. (c). Q. (d) neither P & Q

7 Roshni is making temporary amount of Indian peel. What precautions should be 1
taken to avoid the entry of air bubbles in the slide?
(a) cover slip should be gently dropped over the peel
(b) peel should be immersed in stain over an hour
(c) peel should be allowed to fold over itself once or twice
(d) cover slip should be dropped on the peel from a certain height

8 Lignified, narrow, elongated and dead cells are found in: 1
(a) Collenchyma. (b)Phloem. (c) parenchyma. (d) sclerenchyma

9 Usha swims in a 90 m long pool. She covers 180 m in one minute going either 1
way. The average velocity is.
(a) 30 m/s. (b) zero. (c) 180 m/s. (d) 90 m/s

10 An atom with three protons and four neutrons will have the Valency of. 1
(a) 4. (b) 1. (c) 7. (d) 3

11 What is the correct symbol of Sodium 1
(a). Na. (b). N. (c) S. (d) Se

12 Correct formula of calcium carbonate 1
(a) CaC2. (b) CaO. (c) Ca2O. (d) CaCO3

13 Nerve cell does not contain 1
(a) Axon. (b) Nerve endings. (c) dendrites. (d) tendon

14 The speed of a car weighing 1500 kg increases from 36 km/h to 72 km/h 1
uniformly. What will be the change in momentum of the car?
(a) 15000 kg km/h (b) 15000 kg m/s. (c) 54000 kg m/s (d) 54000 g m/s

15 Weeds affect the crop plants by 1
(a) killing of plants in the field before they grow
(b) providing nutrients to grow
(c) competing for various resources of crops (plants) causing low availability of
nutrients
(d) all of the above.

16 Poultry fowl are susceptible to the following pathogens 1
(a)​ Viruses. (b) Bacteria. (c) Fungi (d) All of the above

DIRECTIONS: In the following questions 17 -20, a statement of assertion (A)
is followed by a statement of reason (R). Mark the correct choice as:
(a) Both assertion (A) and reason (R) are true and reason (R) is the correct
explanation of assertion (A).
(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct
explanation of assertion (A).
(c) Assertion (A) is true but reason (R) is false.
(d) Assertion (A) is false but reason (R) is true.

17 Assertion: Ultrasonic waves are used in medical imaging. 1
Reason: Ultrasonic waves have high penetrating power and can pass through
tissues.

18 Assertion: A football has lesser inertia than a stone of the same size. 1
Reason: Massive object has less inertia.

19 Assertion (A): Epithelial tissues are tightly packed and form a protective 1
barrier.
Reason (R): Epithelial tissues have a high rate of cell division to replace
damaged cells.

20 Assertion : Milk is an aerosol 1
Reason : Milk contains fat as dispersed phase and water as dispersion medium

Section - B (6x2 = 12 marks)

21 When a force of 40 N is applied on a body it moves with an acceleration of 5 2
ms-2. Calculate the mass of the body.

22 Helium atom has atomic mass of 4u and has two protons in its nucleus. What is 2
the atomic number of He and how many neutrons does it have?

23 Why does a dessert cooler cool better on a hot dry day? 2
OR
Liquids and gases can be compressed but it is difficult to compress solids.
Why?

24 (a) Name the cell organelles that contain their own genetic material. 2
(b)Write the function of vacuoles in a plant cell.

25 Draw the distance-time graph for a uniform and non-uniform motion. 2

26 The mass of the earth= 6 ×1024 kg and of the moon = 7.4x1022kg. The distance 2
between the earth and moon is 3.84x105 km. Calculate the force exerted by the
earth on the moon. (take G=6.7x10-11 N m2 kg-2)
OR
What is the difference between the mass of an object and its weight?

Section - C (7x3 = 21 marks)

27 Draw a well labelled diagram of an animal cell. 3

28 Differentiate between parenchyma, collenchyma and sclerenchyma 3

29 (a)Which wave property determines (a) loudness, (b) pitch? 3
(b) Calculate the wavelength of a sound wave whose frequency is 220 Hz and
speed is 440 m/s in a given medium.
OR
(a)​ What is reverberation?
(b)​Why are the ceilings of concert halls curved?

30 (a) What will be the state of water at 108o C? 3
(b) Give reason why water is liquid at room temperature?

31 (a) What is an ion? 3
(b)Give example of a cation and an anion​ .
(c)Write the formula of carbon tetrachloride.

32 How do you differentiate between capture fishing, maricultural and 3
aquaculture?
OR
(a)What are the desirable agronomic characteristics for crop improvements?
(b)Name any two macronutrients required by the plants.

33 A car accelerates uniformly from 18 km/h to 36 km/h in 5s. Calculate: (i) the 3
acceleration (ii) the distance covered by the car in that time

Section - D (3x5 = 15 marks)

34 Look at the diagram carefully and answer the following questions: 5

a.​ Identify this vascular tissue present in plants.
a.​ Write its function.
b.​ Name the cells present in this tissue.?
c.​ Which tissue transports water in plants?
d.​ Why are xylem and phloem called complex permanent tissues?

35 Draw the structure of an atom which has two electrons in its outermost shell M. 5
Write the atomic number of the element? Also mention its name, Electronic
configuration, Valency and calculate number of neutrons.

36 a) The potential energy of a freely falling object decreases progressively. 4
i) Does this variation in potential energy violate the law of conservation of
energy?
ii) What is the sum total of kinetic energy and potential energy called?
b) A mass of 10 kg falls from a height of 50cm. Calculate (i)Velocity of the
body. (ii) Kinetic energy of body when it just reaches the ground level. (Take
g=10 m/s2)

Section - E (3x4 = 12 marks)

37 Read the following CASE-STUDY based passages and answer the 4
questions-
Roshan made three different solutions using samples of copper Sulphate, Milk
and Wheat flour in 100 mL of water in three separate beakers naming X,Y and
Z respectively. He left the three beakers undisturbed for some time. Then he
passed a beam of light through them one by one and noted down his
observations. Later, he also filtered the three mixtures using filter paper as
shown below:

a) What type of solution is prepared in Beaker – Y?
b) Is solution in Beaker Z stable?
c) In which solution no residue is found on the filter paper?
d) Which of these solutions has particle size less than 1nm- X or Y?

38 Plant and animal cells have several differences and similarities. For example, 4
animal cells do not have a cell wall or chloroplasts but plant cells do. Plant cells
unlike animal cell usually have very few but large central vacuole taking up to
almost 60% of cell volume.
Plant and animal cells are both eukaryotic cells, so they have several features in
common, such as the presence of a cell membrane, and cell organelles, like the
nucleus, mitochondria and endoplasmic reticulum.
a.​ Which cell organelle controls all cellular activities?
a.​ Name the cell organelle found in Plant cell which helps to carry out
photosynthesis.
b.​ Name the cell organelle(s) present in only plant cell and not in animal cell.
c.​ What happens when raisins are kept in Hypotonic solution for few hours?

39 The following table shows the weights (W) of objects of equal volume 4
immersed in water (having density = 1000 kg/m3), observe the table and answer
the questions that follow. [Given g = 9.8 m/s2]
OBJECT WEIGHT (W) IN NEWTON
A 1000
B 1500
C 2000
D 2500
a- On which object is the maximum Buoyant force (up thrust) exerted by water?
b- If object C floats inside water (while completely immersed in it), what is the
up thrust acting on it?
c- State the principle based on which the up thrust acting on an object is
obtained.
d- A body of mass 2500 kg and volume 5 m3 is placed on water surface. Will it
float or sink in water?

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SEE (2024-25) SET -3
SUBJECT: SCIENCE. CLASS : IX
ANSWER KEY/MARKING SCHEME
SECTION A
S No. Answer Marks
1 B 1
2 B 1
3 C 1
4 C 1
5 A 1
6 B 1
7 A 1
8 D 1
9 B 1
10 B 1
11 A 1
12 D 1
13 D 1
14 B 1
15 C 1
16 D 1
17 A 1
18 C 1
19 A 1
20 D 1
SECTION B
21 8 Kg 2
22 Atomic number – 2, Helium has 2 neutrons 1+1
23 Faster evaporation leads to better cooling 2
OR
Solids have strong intermolecular forces and very less space between the
constituent particles
24 (a)Mitochondria and Chloroplasts 1+1 = 2

(b) Store water, nutrients, and waste products.

Maintain turgor pressure for structural support

25 1+1 =2

26 2.02x1020 N.(applying Newton’s law of Gravitation) 2
OR
Mass is the quantity of matter contained in a body. Weight is the force of
gravity acting on the body

SECTION C
27 A well labeled diagram of an animal cell 3

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28 Correct difference on the basis of structure and function of parenchyma, 3
chollenchyma and sclerenchyma
29 ●​ Loudness → Amplitude of the wave 1+2 = 3
●​ Pitch → Frequency of the wave

Applying λ=V/v Wavelength = 2 meters OR
OR
Reverberation is the persistence of sound in a space due to multiple
reflections from surfaces such as walls, ceilings, and floors. 1+2 = 3

Curved surfaces help in:

1.​ Reflecting sound waves uniformly
2.​ Enhancing sound clarity
3.​ Reducing excessive reverberation
30 (a) At 108°C, water exists as steam (gas) because it is above its boiling 1+2 = 3
point.

(b) Water is liquid at room temperature because of hydrogen bonding, which
keeps the molecules close together, preventing it from turning into gas at
room temperature.

31 (a) Ion: An atom or molecule that has gained or lost electrons, acquiring a 1+1+1 = 3
charge.

(b) Examples:

●​ Cation: Na+ (Sodium ion)
●​ Anion: Cl− (Chloride ion)

(c) Formula of Carbon Tetrachloride:CCl4​

32 Correct difference between capture fishing, mariculture and aquaculture. 3
OR
OR
Any of the correct desirable characteristics that help to improve crop
production. 2+1
Any two macronutrients
33 (i) Acceleration = 1 m/s² (applying the equation v = u + at) ​ 1.5+1.5 =
(ii) Distance covered = 37.5 m, Applying the equation v2 -u2 = 2as OR 3
S= ut + 1/2at2
SECTION D
34 a)phloem b) transports food from leaves to other parts of the plant c) sieve cells, sieve 1 +1+1+1
tubes, phloem fibres , phloem parenchyma and companion cells d) Xylem
e) Xylem and phloem are called complex permanent tissues, because they are made up of
+1
more than one type of cells, these cells coordinate to perform a common function.
35 ½+½+
½ + 1/2
atomic number is 12 , name of element is magnesium , electronic configuration is 2,8,2 , +1
Valency is 2 and number of neutrons is 12.

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+2

(or any other group 2 element.)
36 a.​ i) No,it does not violate the law of conservation of energy. As the object falls, its 1+1
potential energy decreases but the same amount of kinetic energy increases for the ​
body.
a.​ Ii) Sum total of kinetic energy and potential energy is called mechanical energy.
​
b.​ Mass=10kg, h=50cm=0.5m g=10m/s2 u=0
.​ V2-u2=2gs ii) K.E=1/2mv2
V2=0+2*10*0.5 K.E=1/2*10*10*10 +3
V2=10m/s K.E=500J

SECTION E
37 a.​ Colloidal Solution b) No, unstable c) Solution X 1 mark
d) Solution X ( Copper Sulphate solution) each

38 A. Nucleus ​ B. Chloroplast 1 mark
c) Cell wall, Chloroplast d) they will swell up each

39 a.​ The upthrust exerted by water is equal on all objects. 1 mark
a.​ The upthrust acting on object C is equal to its weight, i.e. 200 N. each
b.​ Archimedes’ Principle. It states that if a body is partially or fully
immersed in a fluid, it experiences an upthrust which is equal to the
weight displaced by
c.​ Density= Mass/Volume ->D= 2500/5 =500kg/m3
Density of water(given) =1000kg/m3
As density of object is less than water thus the body will float.

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