CBSE Sample Paper for Class 9th| Science Summative Assessment I 2016 SET A (Solved)

1. Name any two unicellular organisms. (1)

2. What is the rate of change of velocity called? (1)

3. Define SI unit of current. (1)

4. Explain the process of formation of cork. (2)

5. Show the interconversion of three states of matter. (2)

6. A body is accelerating at a constant rate of 10ms-2. If the body starts from rest, how much distance it will cover in 2s. (2)

7. Why does the temperature remain constant during the change of state of matter? Explain it on the basis of change of solid state into liquid state. (3)

8. How does pressure help in liquefaction of gas? Name two liquefied gases used in daily life. (3)

9. When iron rod is kept dipped in copper sulphate solution for some time, a brown coating is formed on the iron rod. What change will be observed in the colour of the solution? Also write chemical equation for the reaction involved. (3)

10. Name the plant hormones responsible for the following functions:
    (a) growth of the stem
    (b) promotes cell division
    (c) wilting of leaves                                              (3)

11. Write four types of the epithelial tissue and give its functions. (3)
12. A biker rides 700m north, 300m in east, 400m in north, 600m west, 1200m south, 300m east and finally 100m north. Draw the path of motion of the biker. What distance did he cover? What was his displacement? (3)

13. Name the physical quantities denoted by:
      (a) the slope of the distance-time graph
      (b) the area under velocity-time graph
      (c) the slope of velocity-time graph                      (3)

14. Your mass on earth is 50 kg. Planet 'M' has two times force of gravity of that on earth. What will be your mass and weight on planet 'M'? (g = 9.8 ms-2) (3)

15. State Newton’s laws of motion. (3)

16. Vishnu's father had two healthy Sahiwal cows. Vishnu told his father that the lactation period of cows can be increased by cross breeding cattle with foreign breeds and it was possible artificially also. In this way if villagers participated in cross-breeding programme, they would get a breed of cattle which would produce higher milk yield.
    (a) What is meant by lactation period?
    (b) Name two exotic cattle breeds with long lactation period.
    (c) What values are exhibited by Vishnu?                      (3)

17. Define mixed cropping. Give two advantages of it. (3)

18. On what factors do the following physical quantities depend:
     (a) Inertia
     (b) Momentum
     (c) Force                                                                  (3)

19. (a) Write two differences between heterogeneous and homogeneous mixture.
      (b) Identify homogeneous and heterogeneous mixtures among the following:
           Air, salt solution, kerosene in water, muddy water, soil, soda water.         (5)

20. What is meant by Tyndall effect? Which type of solutions show Tyndall effect? Write two important properties of these solutions. Write any two examples of these solutions used in daily life. (5)

21. Draw the labelled diagram of a section of phloem. Name the four types of elements found in phloem. With respect to conduction, what is the main difference between xylem and phloem? (5)

22. (a) What is meant by composite fish culture?
      (b) What is the basis of selecting the different species of fish?
      (c) Which method is used to get pure fish seed?             (5)

23. (a) Define force. State four effects a force can produce in a body.
      (b) A man pushes a box of mass 50 kg with a force of 80 N. What will be the acceleration of the box? What would be the acceleration if mass were halved?              (5)

24. (a) A person weighs 110.84N on moon, whose acceleration due to gravity is 1/6 of that earth. If the value ‘g' on earth is 9.8 ms-2. Calculate:
(i) 'g’ on moon.
(ii) mass of person on moon
(iii) weight of person on earth
(b) How does the value of g on the earth is related to the mass of the earth and its radius? Derive it. (5)
Questions 25 to 33 carry 1 mark each and 34 to 36 carry two marks each
25. Given below are the steps that need to be taken to test presence of metanil yellow In dal. But these are not written in correct order 
    (i) Take a small amount of sample of dal in a test-tube.
    (ii) Add few drops of conc. HCl into the test-tube.
    (iii) Add 10 mL of water in the test-tube.
    (iv) Stir the sample in water by shaking it well.
The correct order will be:
(a)       (i), (iv), (ii), (iii)                 (b)      (i), (iii), (iv), (ii)
(c)       (i), (ii), (iii), (iv)                 (d)      (i), (iv), (iii), (ii)

26. On strongly heating grey coloured iron filings with yellow coloured sulphur powder, the colour of iron sulphide compound formed is :
(a) grey              (b) yellow           (c) yellowish grey           (d) black

27. Test for the presence of starch in a sample of food is performed by:
(a) boiling food sample with NaOH and adding iodine solution.
(b) boiling a mixture of iodine solution with conc. HCl and food sample.
(c) adding a few drops of iodine solution to food sample.
(d) dissolving food sample in dil. HCl and adding iodine solution.

28. Some properties of a compound are given below. The correct property is
(a) It is easy to separate components of a compound by physical methods.
(b) The elements in a compound do not retain their individual properties.
(c) The proportion of the elements in a compound always varies.
(d) The elements of a compound retain their properties to some extent.

29. Take dilute sulphuric acid in a test tube and put a few zinc granules into test tube. You would observe that(a) Zinc granules change to powder.
(b) Colour of zinc changes from grey to white.
(c) Size of zinc granules keep on decreasing
(d) Surface of zinc metal becomes bright.

30. Four students A, B, C and D marked an onion epidermal cell seen under a microscope as below.
The correct labelled diagram is of the student:
(a) A
(b) B
(c) C
(d) D

31. Reddish Brown deposit obtained on iron nails when kept in a solution of copper sulphate in
water is that of
(a) CuO        (b) Cu20
(c) Cu           (d) CuS

32. A mixture contains iodine, ammonium chloride and sand. Only iodine and ammonium chloride sublimate. Only iodine dissolves in carbon tetra chloride. How will you separate the three components? Sequence of steps will be
(a) Sublimation, addition of CCl4.
(b) Addition of CCl4, filtration, sublimation.
(c) Sublimation, addition of H2O, filtration.
(d) Evaporation, distillation, crystallization.

33. The SI unit of weight is:
(a) gram             (b) kilogram
(c) Newton        (d) Newton meter

34. What precautions must a student take while determining the melting point of ice in the school laboratory 7 List any two.

35. Before placing the raisins in water, the raisins weighed 10 g. The raisins were then taken out of water, wiped well, and then the weight was found to be 12.5 g. Determine the percentage of water absorbed by raisins. Define the process due to which raisins absorb water.

36. You are given aqueous solutions of sodium chloride and chalk powder. How would you distinguish between the two without tasting?

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