Science, asked by GovindKrishnan, 1 year ago

Provide CBSE previous year SA1 question paper (2015-16 preferred) of Science [Class 9]

♦ Plz don't give links or downloaded model papers. Do give only images if U have one.

Points : 25 ☺
Subject : Science
Class : 9 (CBSE)


Anonymous: Dear, sa1 is over ryt?
GovindKrishnan: This question is not only for me @Nav260601 :) It's for the other users who will be attending Class 9 SA1 in future too :)
Anonymous: woow brilliant!

Answers

Answered by Fuschia
19
                                    SUMMATIVE ASSESSMENT - I
                                                   SCIENCE
                                                  CLASS - IX
Time allowed : 3 hours                                              Maximum marks : 90

General instructions :

i) All questions are compulsory.
ii) All questions of Section-A and Section-B need to be attempted separately.
iii) Questions 1 -3 are of 1 mark.
iv) Questions 4-6 are of 2 marks
v) Questions 7-18 are of 3 marks
vi) Questions 19-24 are of 5 marks.
vii) Questions 25-33 of Section-B are MCQs and are based on practical skills Each question is of 1 mark.
vii) Questions 34-36 are of 2 marks and are based on practical skills.

                                                  SECTION - A

1) Name the process through which an amoeba acquires its food from external environment.

2) Under what condition will the magnitude of displacement be equal to the distance traveled by an object?

3) State the kind of nutrients provided by vegetables and fruits?

4) What is the effect of increase in temperature on solid state of matter?Explain.

5) Write the location of following tissues :
a) Tendon  b) Cuboidal epithelium  c) Areolar tissue 
d) Aerenchyma plant tissue

6) Gravitational force on an imaginary planet is 6 times stronger than gravitational force of the Earth. Determine the value of acceleration due to gravity and weight of an object of mass 50kg on that planet.

7) You are provided with mixture of camphor, common salt and soil.Using various techniques how will you separate the components of this mixture.Write the various steps involved.

8) (a) Write one difference between concentration and solubility.
(b) What is the effect of temperature on the rate of solubility?

9) A little baby was playing in a park with his maid.Suddenly he fell down and got minor injury.Maid applied tincture of iodine on the wound.
a) Why did she apply tincture of iodine on the wound?
b) Name the solute and solvent present in tincture of iodine.
c) Enlist the values shown by the maid.

10) Name the kinds of muscles found in your limbs and lungs.How do they differ from each other structurally and functionally?

11) (a) Why is the cell called structural and functional unit of life?
(b) Why is the plasma membrane called a selectively permeable membrane?
(c) Name the factor which decides the movement of water across the plasma membrane?

12) A hockey ball of mass 200g traveling at 10m/s is struck by a hockey stick so as to return original path with a velocity of 5m/s.Calculate the change in momentum of the hockey force applied by the hockey stick.

13) A particle weighs 120N on the surface of Earth. At what height above the Earth's surface will its weight be 30N? Radius of Earth = 6,400 km.

14) A motor car is moving with a velocity of 108 km/h and it takes 4s to stop after the brakes are applied .Find the force exerted by the brakes on the motor car if its mass along with the passengers is 1000kg.

15) A ball rolling on a horizontal surface uniformly with a velocity of 8m/s comes to rest in 4s. Draw the graph of V-t graph and find graphically the distance traveled by it in 4s.

16) Mention the three major steps of activities for improving the crop yields.

17) How is fumigant different from a pesticide? Name one natural substance which can be used in place of fumigant.

18) Mention 3 advantages of using manure in agricultural fields.

19) a) Comment how evaporation is a surface phenomenon whereas boiling is a bulk phenomenon.
b) Explain why wet clothes dry faster when we spread them out?

20) (a) Draw a labelled diagram of the apparatus used to separate components of 2 miscible liquids (water and acetone). Name the process and state the principle involved.
(b) Identify the physical changes from the following :
(i) Melting of ice
(ii) Rusting of iron
(iii) Sublimation of iodine
(iv) Burning of magnesium in air

21) (i) Define tissue.What is the utility of tissues in multicellular organisms?
(ii) Are plants and animals made of same types of tissues?If no,then write three point difference.

22) (a) Give 2 differences between distance and displacement .The position time graph for child "A" and "B" returning from their school "O" to their homes "P" and "Q" respectively
(REFER THE PICTURE GIVEN BELOW)
(i) Which of the two 'A' or 'B' lives closer to school?
(ii) Which of the two 'A' or 'B' starts earlier from school?
(iii) Which of the two 'A' or 'B' walks faster?

23) (REFER THE PICTURE GIVEN BELOW AND ANSWER THE FOLLOWING QUESTIONS)
(a) What do you observe in the given below case? Why?
(b) State the law involved in this case.
(c) What will be your observation if the coin is replaced by heavy 5-rupee coin?Justify your answer.

24) What is composite fish culture? What is the criteria for selecting the fishes for this type of fish farming and why? List 2 problems of composite fish farming.


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Answered by BellaStark2
16
Continuation of paper by BellaStark1

                                               SECTION - B

25) Food samples taken by four students A,B,C,D to test the presence of starch are :
(A) Grape juice
(B) Lemon juice
(C) soup of mixed pulses
(D) Rice extract (maand)
The student who will be able to obtain positive result is:

(a) A  (b) B  (c) C  (d) D

26) To test the presence of metanil yellow in a given adulterated sample of dal three students A,B,C took samples in 3 test tubes in the following manner:
(A) whole dal
(B) powder of dry dal
(C) solution of powdered dal in water
Each of them added conc.Hydrochloric acid to their respective samples.Correct confirmatory observation was given by:

(a) A only  (b) B only  (c) C only  (d) all of three

27) REFER THE PICTURE 1  GIVEN BELOW
Four test tubes contain different colored solid components.
Which test tube contains sulfur powder?

(a) I  (b) II  (c) III  (d) IV

28) 4 students A,B,C and D observed the color and solubility of iron ,sulfur and iron sulfide in carbon disulfide.The tick mark (3) represents 'soluble' and cross mark (5) represents 'insoluble' in carbon disulfide.
(REFER PICTURE 2 GIVEN BELOW ) their observations are provided below in the picture.

The correctly reported observation is of :

(a) A  (b) B  (c)  C  (d) D

29) Rahul added 2 ml of barium chloride solution to 2ml of sodium sulfate solution in a test tube and observed that
(a) a clear solution
(b) 2 solutions form separate layers in the test tube
(c) the solution turns pink
(d) a white solid settles at the bottom.

30) To prepare stained temporary mount of onion peel we must prepare the slide by taking :

(a) dry scale leaf
(b) thin outside layer of fleshy leaf of onion.
(c) thin inside layer of fleshy leaf of onion.
(d) crushed pulp of fleshy leaf of onion.

31) Part of nerve cell has been given (REFER PICTURE 3 BELOW)

(a) cilia  (b) flagella  (c) tentacles  (d) dendrites

32) A mixture can be characterized by:

(a) no fixed composition of components
(b) homogenity
(c) no occurrence of chemical reaction
(d) heterogeneous

33) A wooden block of 200gwt placed on a horizontal table was to be pulled from one side by using a spring balance ,to find the force required to just move it.The maximum range of the spring balance used in this experiment :

(a) should be at least upto 200gwt
(b) can be less than 200gwt
(c) must be more than 200gwt
(d) less ore more, doesn't matter.

34) 4 students were asked to add water to glucose powder, milk ,sand and soil separately in 4 beakers.Classify the mixtures as true solution,colloid, suspension.

35) Mention the temperature of the following in degrees Celsius and Kelvin scale :
a) Ice and cold water
b) Boiling water and steam

36) If 'x' is initial mass of raisins and 'y' is the final mass of raisins after soaking in water. Calculate the percentage of water absorbed by raisins.








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