DELHI PUBLIC SCHOOL ONGC, NAZIRA

Name………………………………… Class: IX Roll No. ….

Sub: Science (086) Sample Paper M.M : 80 Time: 3 hrs.

General Instructions:
i. This question paper consists of 39 questions in 5 sections.
ii. All questions are compulsory. However, an internal choice is provided in some questions. A student is expected to attempt only
one of these questions.
iii. Section A consists of 20 objective type questions carrying 1 mark each.
iv. 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.
v. 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 .
vi. 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.
vii. Section E consists of 3 source-based/case-based units of assessment of 04 marks each with sub-parts.

SECTION-A
Select and write the most appropriate option out of the four options given for each of the questions 1-20. There
are no negative mark for incorrect response.
Marks
Q Questions
Nos
1. Which of the following states of matter takes the shape of the container in which it is filled? 1
(a) Solid (b) Liquid (c) Gas (d) Both liquid and gas
2. Evaporation of a liquid takes place at temperature 1
(a) Below the boiling point. (b) Below the freezing point.
(c) Above the freezing point. (d) Above the boiling point.
3 When sugar dissolves in water, volume of a solution does not change because: 1
(a) Particles of matter are very small in size.
(b) Particles of matter are continuously moving.
(c) Particles of matter have spaces between them.
(d) Particles of matter have property of diffusion.
4 Mother had placed some moth balls (Naphthalene balls) in the clothes. But the moth balls 1
disappeared after few days. Which property of matter is witnessed in this example?
(a) Evaporation (b) Melting (c) Sublimation (d) Liquefaction
5. The continuous zig-zag movement of colloidal particles in a dispersion medium is called 1
(a) Dispersion (b) Brownian movement (c)Tyndall effect (d) Oscillation
6. The Non-metal which exists in liquid state at room temperature? 1
(a) Sulphur (b) Bromine (c) Carbon (d) Murcury
7. Which of the following can’t show Tyndall effect? 1
(a) NaCl solution (b) Starch soultion (c) Egg albumin solution (d) Milk
8. The image shows a bacterial cell and an animal cell. 1

Which of the following statements is correct?

(a) Cytoplasmic content of the bacterial cell is not enclosed in a thick cell wall as in case of an
animal cell.
(b) Nuclear material of the bacterial cell is not enclosed in a nuclear envelope as in case of an
animal cell.
(c) Animal cell contains flagella that aids in locomotion that is absent in case of a bacterial cell.
(d) Animal cell contains ribosomes spread across the cell whereas in case of bacterial cell they
are clumped together.

P-1/5
9. The table lists functions performed by some plant cell organelles. 1
Organelle Functions
M It allows transportation of materials in and out of
the cells.
N It stores the products of ER in vesicle.
O It helps digest foreign molecules.
P It produces food in the cell.
Which option shows the correctly labelled organisms in the plant cells that performs the
respective functions?

10. A large amount of energy is required by the cell to carry out various cellular processes. 1
Which part of mitochondria helps to generate enough energy required for various chemical
activities and how?
(a) The folds present in the outer mitochondrial membrane increase the surface area for more
ATP production.
(b) The folds present in the inner mitochondrial membrane increase the surface area for more
ATP production.
(c) The folds present in the inner mitochondrial membrane decrease the surface area for more
ATP production.
(d) The folds present in the outer mitochondrial membrane decrease the surface area for more
ATP production.

11. In a living cell the fluid present inside the nucleus is called 1
(a) cytoplasm (b) protoplasm
(c) endoplasm (d) nucleoplasm.
12. The image shows the stem of a plant. 1

Which type of meristematic tissue is present at the labelled part ‘X’?

(a) Lateral meristem (b) intercalary meristem
(c) apical meristem (d) both apical and lateral meristem
13. The value of quantity G in the law of gravitation 1
(a) depends on mass of Earth only (b) depends on radius of Earth only
(c) depends on both mass and radius of Earth (d) is independent of mass and radius of Earth
14. The gravitational force between two objects is F. If masses of both objects are halved without 1
changing distance between them, then the gravitational force would become
(a) F/4 (b) F/2 (c) F (d) 2F

P-2/5
15. The image shows a set-up of an experiment. 1

A student takes a leafy green Balsam plant and places it in Eosin solution. The solution is a red
coloured dye. After 4 hours, the student observes that the red colour appears on the parts of the
plant body. Which type of tissue is responsible for these type of changes?
(a) Xylem as it helps in the movement of water from roots to stem and leaves.
(b) Phloem as it helps in the movement of water from leaves to roots and stem.
(c) Xylem as it helps in the movement of water from leaves to roots and stem.
(d) Phloem as it helps in the movement of water from roots to stem and leaves.
16. What is likely to happen if an animal cell and a plant cell are placed in a sugar solution that has 1
water concentration more than that of the animal cell and plant cell.
(a) Animal cell will swell while the plant cell will burst.
(b) Both the animal and plant cell will swell.
(c) Both the animal and plant cell will burst.
(d) Animal cell will burst while the plant cell will swell.
Question No. 17 to 20 consist of two statements – Assertion (A) and Reason (R).
Answer these questions selecting the appropriate option given below:
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true and R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
17 Assertion: A gas can easily be compressed by applying pressure. 1
. Reason: The inter-particle spaces between gases are very large which reduces by applying pressure.
18 Assertion(A) : Parenchyma tissues are present in the cortex and pith. 1
. Reason (R) : Parenchyma is the basic packing tissue.
19 Assertion (A): The value of ‘g’ is greater at the poles than at the equator. 1
. Reason (R): Radius is more at the equator than at the poles.
20 Assertion (A) : The quantity of DNA varies in different organisms. 1
. Reason (R) : DNA is composed of chromosomes.
SECTION – B
Question No. 21 to 26 are very short answer questions
21 Write two points to differentiate evaporation and boiling. 2
22 (a) Define plasmolysis. 1+1
(b) Name two structures found in plant cells but not in animal cells. =2
23 A car decreases its speed from 80km/h to 60km/h in 5sec. Find the acceleration of the car. 2
24 The velocity-time graph of a ball moving on the surface of a floor is shown in figure. Find the force 2
acting on the ball if the mass of the ball is 40g.

P-3/5
25 What is the magnitude of the gravitational force between the earth and a 2kg object on its 2
. surface?(Mass of the earth is 6×1024kg , Radius of the earth is 6.4×106m and
G=6.7×10-11Nm2/kg2).
OR 2
Write two difference between acceleration due to gravity (g) and universal gravitational constant
(G).
26 (a) Tissue A and tissue B constitute tissue C. A carries water while B carries food for the plants. 1+1
. Identify A,B and C. =2
(b) If a potted plant is covered with a glass jar, water vapour appears on the walls of the glass jar.
Explain.
OR
(a) Water hyacinth floats on water surface. Explain.
(b) Which structure protects the plant body against the invasion of parasites?
SECTION - C
Question No. 27 to 33 are short answer questions.
27 (a) 10 g of sodium hydroxide is dissolved in 100 mL of water. Calculate the mass per cent of 3
. sodium hydroxide in this solution. 1
(b)Define a saturated solution. Suggest a method to make a saturated solution unsaturated. 2
28 What do you mean by Tyndall effect? Why do colloidal solutions show this effect? Give some 3
. examples of Tyndall effect observed in your surroundings. 3
OR
(a) Write two points to differentiate between True Solution and Colloids. 2
(b) Differentiate between Compound and Mixture. 1
29 Chloroplasts are very important plant cell organelle. We cannot imagine plants without them. 3
. Would there exist plant life without chloroplasts? Justify.
30 Differentiate between: 1+1
. (a) RER and SER with reference to its cytoplasmic surface. +1=
(b) Prokaryotic cell and eukaryotic cell on the basis of nucleus. 3
(c) Plasma membrane and cell wall on the basis of permeability.
31 A bullet of mass 4g when fired with a velocity of 50m/s, can enter a wall up to a depth of 10cm.
. How much will be the average resistive force offered by the wall? 3
32 (i) A boy moves along the boundary of a square field of side 10m in 40sec. What will be the 2+1
. magnitude of displacement of the boy at the end of 2minutes and 20seconds? =3
(ii) Under what condition can a body travel a certain distance and yet its net displacement be zero?
33 The driver of train A travelling at a speed of 54km/h applies brakes and retards the train uniformly. 3
. The train stops in 5seconds. Another train B is travelling on the parallel track with a speed of
36km/h. Its driver applies the brakes and the train retards uniformly; train B stops in 10seconds.
Plot speed-time graphs for both the trains on the same axis. Which of the trains travelled farther
after the brakes were applied?
SECTION - D
Question No. 34 to 36 are Long answer questions.
34 (a) Give reasons for the following: 2 5
. (i) Why do we feel relief under a fan when we are perspiring?
(ii) Why does our palm feel cold when we put some acetone or petrol or perfume on it?
(b) Convert the following: (i) °C to K: 35°C, (ii) K to °C: 293K 2
(c) ‘Osmosis is a special kind of diffusion’. Explain. 1
OR
(a) Give reason for the followings: 3
(i) Gases exert pressure on the walls of the container.
(ii) Gases undergo diffusion very fast.
(iii) We able to sip hot tea or milk faster from a saucer rather than a cup.
(b) What type of clothes should we wear in summer? Why? 1
(c) List any two properties that liquids have in common with gases. 1
35 Name the following: 1*5
. (a) The living Xylem element. =5
(b) Tissue present in shoot and root apex.
(c) Tissue responsible for increasing the girth of the stems and roots.
P-4/5
 (d) Tissue located in the hard covering of the seeds.
(e) Parenchyma type performing photosynthesis.
OR
Plant tissues are of many types performing diverse functions. Depict the classification of plant
tissues in form of a mind map.
36 (i) State Newton’s second law of motion. Establish the relationship between S.I and C.G.S units of
. force. 3+2
(ii) Why does an athlete put some sand or cushion on the ground while high jumping? =5
OR
(i) A hockey ball of mass 100g travelling from east to west, at 15m/s is struck by a hockey stick. As
a result the ball gets turned back and now has a speed of 10m/s. The ball and the hockey stick were
in contact for 0.4sec.
(a) Calculate the initial and final momentum of the ball. 2+1
(b) Calculate the rate of change of momentum of the ball. +2=
(ii) Why does a gun recoil on firing? 5
SECTION - E
Question No. 37 to 39 are case - based/data -based questions with 2 to 3 short sub - parts. Internal choice
is provided in one of these sub-parts
37 Read the following passage and answer the following questions: 4
. The substances which occupy some space and have mass are called as matter. Matters will change
its states by changing temperature and pressure. Matter is classified as pure substances and
mixtures. The concentration of a solution can be measured by mass percentage. Changing of
matters from one form to others is may be through physical changes or chemical changes.
(a)Explain why filter paper cannot be used to separate colloids. 1
(b)The allotropic form of a non-metal is a good conductor of electricity. Name the allotrope. 1
(c)Write two points to differentiate between homogeneous and heterogeneous mixtures. 2
OR
(c) Write two differences between physical changes and chemical changes. 2
38 Depending on the region where they are present, meristematic tissues are classified as apical, lateral 1+1
. and intercalary. Cells of meristematic tissue are very active with dense cytoplasm, thin cellulosic +2=
walls and prominent nuclei. They lack vacuoles. When meristematic tissues take up a specific role 4
and lose the ability to divide, it forms a permanent tissue. Permanent tissues can be simple or
complex.
(a) What are the characteristics of a meristematic tissue?
(b) Name the process involved in the conversion of meristematic tissues to permanent tissues.
(c) Name the tissue responsible for water and mineral transport.Is it a simple or a complex tissue?
Why?
OR
Name the tissue responsible for translocation of organic food?.Is it a simple or a complex tissue?
Why?
39 Study the speed-time graph of a body given here and answer the following questions: 2+1
. +1=
4

(a) Calculate the distance travelled by the body from O to A.

(b) What type of motion is represented by BC?
(c) What type of motion is represented by OA?
OR
(c) Calculate the acceleration of the body between 4s to 10s.
P-5/5