INDIAN SCHOOL AL WADI AL KABIRClass: VI Summative Assessment – II, 2015 -16 M.M: 60

16/03/16 SCIENCE Time: 2 ½ HRS

General Instructions:

(i) The question paper comprises of two sections, A and B. (ii) All questions are compulsory.(iii) Ink-killer or whitener should not be used in the answer scripts.(iv) Question numbers 1 to 5 in Section A are one mark questions to be answered in one word or one sentence. (v) Question numbers 6 to 11 in Section A are two marks questions to be answered in 15 words each.(vi) Question numbers 12 to16 in Section A are three mark questions to be answered in 20 words each.(vii)Question numbers 17 to 20 in Section A are five mark questions to be answered in 25 words each.(viii)Question No. 21 is a Value Based Question (VBQ) of two marks. (ix) Question No.22 is a Passage Based Question of two marks.(x) Question numbers 23 to26 of Section B are Multiple Choice Questions (MCQ) with one mark each.

SECTION A

1.What is vermicomposting ? Why is composting of leaves better than burning them ? (1)

2. Why the leaves of plants in tropical rainforest have ‘drip tips ‘? ` (1)

3. Mention the sensory structures in (i) snail (ii) cockroach. (1)

4. Electric kettles and toasters have wooden handles -Give a reason. (1)

5. Represent diagrammatically a beam of parallel rays of light and divergent

beam of light. (1)

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6. Observe the figures given below and answer the questions. (2)

a. Identify the joints A and B.

b. Identify the part C of the human skeleton and mention its function.

7. Write down any two peculiar features of the following animals which help them to adapt

in their natural surroundings. (2)

8. a) What is parallax error? (2)

b) Identify the type of motion shown in the following.

A B C D

9. Differentiate between magnetic and non-magnetic materials .Give two examples for each. (2)

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A

BC

yak

camel

10. a) State the importance of ozone layer. (2)

b.) The composition of air is given below. Draw a pie-chart representing the various

percentages of these gases.

GASES PERCENTAGE

NITROGEN 78 %

OXYGEN 21 %

OTHER GASES 1 %

11.a) Distinguish between biodegradable and non-biodegradable waste . (2)

b) Name any two methods of managing non-biodegradable wastes.

c) What are toxic wastes ?

12. The diagram of a torch is given below . (3)

a) Name the parts marked A , B, C and D.

b) Distinguish between conductors and insulators.

c) Mention the main advantage of a secondary cell over a primary cell.

13. a) What are the advantages of the SI system ? (Any two) (3)

b) Why should body parts not be used for measurement ?

c) When is a body said to be at rest?

14.a.) Observe the diagram, identify and explain the phenomenon. (3)

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b.) How are shadows formed? Mention any two characteristics of a shadow.

15. Observe the figures carefully. (3)

(i) (ii)

a)What do you observe when water starts to boil ?

b) What do you conclude from this activity as shown in (i) and (ii).

c)Why should we inhale through our nose and not through our mouth ?

d) Define oxygen cycle.

16. a) Draw any four types of artificial magnets (3)

b) What precautions should one take while working with magnets?

c) Write any two uses of magnets.

17.a)While measuring the length of the wooden stick, the reading of the scale at

one end is 2.8 cm and the other end is 32.4 cm What is the length of that object ? (5)

b) Differentiate between exoskeleton and endoskeleton with one example each.

c) Explain why the body of birds is well suited for flight.

d) What are X-rays?

e) Name the set of muscles that help in the up and down movement of the arm .

f)Why are cartilages present at the joints ?

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18. a ).Observe the following figure to identify the properties of magnets. (5)

A B

b) While storing magnets, a wooden stick is kept between the two magnets .Give a reason.

c) Light travels through vacuum. Why?

d) What happens to the size of the image if the distance between the object and the pinhole

camera is (i) increased (ii) decreased ?

e) In what ways is an image different from a shadow?

19. a) What do you mean by air pollution ? (5)

b) Define humidity .Why do plants need nitrogen ?

c) Draw a closed circuit diagram in which two cells are connected to a bulb through a switch. d) Why are wires made out of copper though silver is a better conductor of electricity ?

e) In a given circuit material A and B were used. With material A the bulb glowed but

with material B bulb did not glow .

Using this information identify the types of materials used in A and B ?

20. a)What are the special features of grasses found in grasslands ? (any two ) (5)

b) Define camouflage .Give one Example .

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c) Observe the picture given below and answer the following question.

i) The plant has a flat green stem and its roots go deep into the soil. Why?

ii) Why a kangaroo rat does not need to drink much water ?

iii) A deer has eyes on the side of its head. Justify this statement.

21. Asha was working in the kitchen with her mother .Suddenly her mother’s clothes caught fire. She immediately went inside the room and brought a blanket. She covered her mother with the blanket as taught by her science teacher .Her timely action saved her mother from getting severe burns. (2)

a) Why did she cover her mother with a blanket ?b) Write any one safety precaution that is advised while handling electrical devices.c) Name the gas that support burning d) Mention any one value you learnt from Asha.

22 . Read the news article carefully and answer the following questions :

Delhi’s odd-even policy to reduce pollution – A newspaper article

Following the lead of Beijing and Mexico City, the Delhi government put into effect an "odd-even" policy for cars starting Jan. 1. 2016 .Residents can only drive their cars on either odd or even days, based on the last digit of their license plate numbers — though everyone gets a pass before 8 a.m., after 8 p.m. and on weekends.

The policy is an attempt to address the rampant pollution in the city. Last year,the World Health Organization namedDelhi as the most polluted city in the world, even worse than Beijing. According to the Delhi police, there are nearly 10 million vehicles on its roads.

To account for the hundreds of thousands of people who will need to find a new way to get to work, the government has put an additional 3,000 buses into circulation and scheduled the metro to make 70 extra trips each day. And of course, lots of residents are carpooling.

The Energy and Resources Institute (TERI) said that the scheme has brought “considerable” additional benefits including reducing on road congestion, increase of average car speeds, reduced fuel usage and made significant impact on public awareness levels on air pollution and its impacts on human health.

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a.)Explain what is “odd –even “ policy for cars . (2)

b) Mention the considerable additional benefits of this scheme.

SECTION B

23. An instrument used for measuring the distance travelled by a vehicle. (1)

a) Wind vane b ) Anemometer

c) Odometer d.) Hygrometer

24 . The bouncing off and change in direction of light from a surface. (1)

a) Reflection b) Rectilinear propagation

c)Dispersion d)Spectrum.

25. When the north Pole and south pole of two magnets are kept close to each other,

there will be: (1)

a) Attraction b)Rotation

c) Repulsion d)No change

26 . A device used to make or break a circuit. (1)

a) A switch b) A bulb

c) A wire d)A cell

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