# Sample Paper Class 9 – Science

Science is a really broad and complex subject. It consists of laws, equations, diagrams etc. In Science, every concept or a law is connected to another. So, you cannot afford to make a mistake or skip something. Understanding science would require you to test your knowledge from time to time. NTSEGuru experts have composed detailed and effective sample papers. Solve as many as sample papers possibleto get an insight of your strengths and weaknesses.

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## Sample Paper of Class 9th Science

SCIENCE

IX – EXAM ZONE – 01

GENERAL INSTRUCTION:
1) The question paper comprises five sections. A, B, C, D and E.
2) All questions arc compulsory.
3) Internal choice is given in section B, C, D and E.
4) Question numbers 1 and 2 in Section – A are one mark each. These are to be answered in one sentence.
5) Question numbers 3 to 5 in Section – B are two marks each. These are to be answered in about 30 words each.
6) Question numbers 6 to 15 in Section – C arc three marks each. These are to be answered in about 50 words each
7) Question numbers 16 to 21 in Section – D arc five marts each. These arc to be answered in 70 words each.
8) Question numbers 22 to 27 in Section -1 . arc based on practical skills. Each question is a two marks question. These are to be answered in brief.

SYLLABUS & MARKING SCHEME:

 Subject Unit Marks PHYSICS 1) Motion 2) Force and Law of motion 3) Gravitation 4) Work, Energy and Power 5) Sound 26 CHEMISTRY 1) Matter in our surroundings 2) Is matter around us pure 3) Atoms & Molecules 4) Structure of atom 26 BIOLOGY 1) Cell: The fundamental unit of life 2) Tissues 3) Diversity 4) Improvement in food resources 5) Why do we fall ill 6) Natural resources 28 Total 80

SECTION – A

1.    When a carpet is beaten with a stick, dust comes out of it. Explain.  [1]
2.    State the law of conservation of mass and the scientist who established it.  [1]

SECTION – B

3.    State the functions of chromosome in a cell.  [2]
4.    What are isotopes? State one use of each of an isotope: (i) uranium (ii) Iodine.  [2]
5.    State Archimedes principle. Give any two application of Archimedes principle? OR State two factors on which value of ‘g’ depends.  [2]

SECTION – C

6.    (a) Define uniform circular motion.  [3]

(b) Ram goes for a morning walk in a circular park daily. He completes one revolution of the park in 4 minutes. Find his speed and velocity, if the diameter of the park is 420 m.

7.    A ball is thrown up vertically returns to the thrower after 6 seconds. Find  [3]

(a) The velocity with which it was thrown up.

(b) The maximum height it reaches, and

(c) Its position after 4 seconds.

OR

Define average speed. How is it different from average velocity? A motorcyclist drives from A to B with a uniform speed of 30 kin/h and returns back with a uniform speed of 20 km/h. Find his average speed & average velocity.

8.    What is work energy theorem? State and prove.  [3]

9.    Define sublimation. Give two examples of substances that sublime. Mention a situation from your daily life where you observe this process.  [3]

10.    What is chromatography? Mow will you separate the components of black ink using chromatography? Write any two applications of chromatography.  [3]

11.    (a) Give the schematic atomic structures of carbon and nitrogen atom.  [3]

(b) How is following pair of atom known as?

(a) Define Mole.

(b) How many particles are present in one mole of a substance?

(c) What is Molar mass?

12.    Differentiate between tendons and ligaments.

13.    What do you understand by composite fish culture?

14.    Explain the basis for grouping organism into five kingdoms.

15.    What is the structural and functional unit of life and why it is so called?

OR

Name the types of plastids found in plant cell and also write their function.

SECTION – D

16.    (a) What is reverberation? How can it be reduced?  [5]

(b) A submarine emits a SONAR pulse, which returns from an underwater cliff in 1.02 seconds. If the speed of sound in salt water is 1531 m/s, how far away is the cliff?

17.    (a) Derive second equation of motion?  [5]

(b) A bullet of mass 10 g travelling horizontally with a velocity of 150 m/s strikes a stationary wooden block and comes to rest in 0.03 seconds. Calculate the distance of penetration of the bullet into the block. Also calculate the magnitude of the force exerted by the wooden on the bullet.

OK

Let a body is thrown upwards with velocity ‘u’. prove that

(a) Velocity of body on returning to our hand will be same as the velocity of projectile

(b) Time taken by body to reach up to maximum height will be equal to time, which body takes to return to the ground and thus derive formula for time of flight (i.e. time for which body remains in air)

18.    (a) Write the chemical formulae of: –  [5]

(i) Magnesium chloride           (ii) Zinc sulphite

(b) What are polyatomic ions? Give two examples.

(c) Calculate the mass of the following: –

(i) 0.5 moles of $N_{2}$ gas

(ii) $3.011&space;\times&space;10^{23}$ number of’carbon atoms.

19.    (a) What type of clothes should we wear in summer and why.

(b) Which of the two produces more severe burns boiling\your answer.

(c) Describe an activity to show particles of matter are continuously moving. [5]

OR

Above block diagram shows the various slates due to heating of ice below $0^{o}C$. Whether the following statements arc true or false?

(Give proper reason for your conclusion also.)

(a) Heat is provided in step 1 to get step 2

(b) Heal is not applied in step 2 to get step 3.

(c) Amount of heat is same in step 6 & step 5 as there is no change in temp.

(d) Step 1 can be achieved directly from step 6.

(e) Ice is sublime substance.

20.    Differentiate between striated, unstriatcd and cardiac muscles on the basis of their structure and site/location in the body.  [5]

AIDS in one of the serious pandemic disease. Discuss following for AIDS.   [5]

(a) What is peculiar about HIV than other viruses?

(b) What arc the challenges in developing AIDS vaccine?

(c) Why is AIDS consider to be syndrome and not a disease.

(d) Write casual organism of it.

(e) Write symptoms of it.

OK

(a) What arc the advantages of classifying organisms?

(b) What are the major divisions in the Plantae? What is the basis for these divisions?

SECTION – E

22.    Calculate the mass of sodium sulphate required to prepare its 20% (mass percent) solution in 100gm of water.  [2]

OR

For the symbol H, D and T tabulate three subatomic particles found in each of them.

23.    10 gm of $\text{CaC}{{\text{O}}_{\text{3}}}$ on heating gave 4.4 pm of $CO_{2}$ and 5.6 of $CaO$. Show that these observations are in agreement with the few of consolation of mass.  [2]

24.    The water level in a measuring cylinder, before and allot immersing a solid in it. is shown in the figure. The volume of the given solid in cc is  [2]

(a) 1.8                                  (b) 2.0

(c) 2.2                                  (d) 2.4

OK

You find your mass to be 42 kg on a weighing machine. Is your mass more or less than 42 kg?

25.    If upthrust on a body in tap water and salty water are $U_{A}$ and $U_{B}$ respectively, then

(a) ${{\text{U}}_{\text{A}}}={{\text{U}}_{\text{B}}}$                           (b) {{\text{U}}_{\text{A}}}>{{\text{U}}_{\text{B}}}” alt=”{{\text{U}}_{\text{A}}}>{{\text{U}}_{\text{B}}}” align=”absmiddle”>

(c)

(d) ${{\text{U}}_{\text{B}}}=\text{2}{{\text{U}}_{\text{A}}}$

26.    How does atmosphere act as a blanket?  [2]

27.    What is pasturage and how is it related to honey production?

OK

Why do not lichens occur in Delhi whereas they commonly grow in Manali or Darjeeling? [2]

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