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JEE Main & Advamced | AIPMT | BOARDS | OLYMPIAD | NTSE

FOUNDATION COURSE For Classes 8, 9 & 10 Class 8

Class 9

Class 10

IMPORTANT INSTRUCTIONS Changes in the Mode and Pattern in SOF Level 2 Exams for year 2014- 2015 Exam Date : 7th and 8th February 2015. Kindly coordinate with your school coordinator for exact date and center for exam. Write to [email protected] for any query related to it. Mode of exam : NCO/ NSO/ IMO Level 2 for the academic year 2014-15 will be an Online Test Pattern of the exams : National Cyber Olympiad Class 3 to 4

5 to 12

Section

No. of Questions Marks per Question

Computers & IT Achievers Section Grand Total Computers & IT Achievers Section Grand Total

30 5 35 45 5 50

1 2 1 3

Total Marks 30 10 40 45 15 60

NATIONAL SCIENCE OLYMPIAD Class 3 to 4

5 to 10

11 and 12

Section

No. of Questions Marks per Question

Science Achievers Section Grand Total Science Achievers Section Grand Total Physics & Chemistry Achievers Section Mathematics/Biology Grand Total

30 5 35 45 5 50 25 5 20 50

1 2 1 3 1 3 1

Total Marks 30 10 40 45 15 60 25 15 20 60

International Mathematics Olympiad Class 3 to 4

5 to 12

Section Mathematics Achievers Section Grand Total Mathematics Achievers Section Grand Total

No. of Questions Marks per Question 30 5 35 45 5 50

1 2 1 3

Total Marks 30 10 40 45 15 60

14th

LEVEL - 2 Year 2011-12

| 14 th NSO | LevelII | Class 3

2

MENTAL ABILITY 1. If (A) 46

+

+

= 72 and (B) 31

+

= 55, then

(C) 55

= ? (D) 9

2. Jia read 20 pages of a book each night. How many pages in all did Jia read in 7 nights ? (A) 80 (B) 90 (C) 120 (D) 140 3. Which of the following models represents 3 ´ 2 ?

(A)

(B)

(C)

(D)

4. Anuj had 13284 strawberries to share equally among 4 friends. How many strawberries did each friend get? (A) 3614 (B) 3321 (C) 3381 (D) 3231 5. What fraction of the figure is unshaded? (A) 8/24 (B) 7/24 (C) 15/24 (D) None of these 6. What is the value of 5 thousands, 23 hundreds and 15 tens ? (A) 5380 (B) 7315 (C) 7450 (D) 52315 7. I am a 2digit number. I am lying between 59 and 99. I am divisible by both 4 and 7. What number am I ? (A) 73 (B) 84 (C) 72 (D) 98 SPACE FOR ROUGH WORK

14 th NSO | LevelII | Class 3 |

3 8. In how many different ways can Sneha choose 1 book and 1 bookmark?

Sneha’s Choices Books Bookmarks Hors es

(A) 2 (B) 3

Mik e’s M ys tery

(C) 5 Ta ll Ta les

(D) 6 9. Anna has the shapes shown in the given box.

Anna’s shapes

Which sentence best describes Anna's shapes? (A) Each shape has all sides of equal length. (B) Each shape has one line of symmetry. (C) Each shape has four right angles. (D) Each shape has four corners. 10. Classes that visit the Life Science Museum are divided into groups of 4 students for each tour guide. Which of the following classes would not be able to form groups of 4 students with none left over? (A) A class of 36 students

(B) A class of 40 students

(C) A class of 46 students

(D) A class of 52 students

SCIENCE 11. Which is a way to help control environmental pollution? (A) Travel by car instead of bicycle. (B) Use pesticides to keep insects away from plants. (C) Burn waste materials at dump sites. (D) Reuse cans, bottles and newspapers whenever possible. SPACE FOR ROUGH WORK


4

12. Abhay is trying to find out which soil makes carrots grow best. He uses a ruler to compare the carrots. What is Abhay measuring? (A) Their length (B) Their colour (C) Their weight (D) Their taste 13. Which will melt the ice fastest?

(A)

(B)

(C)

(D)

14. Which invention has been the most helpful in allowing people to communicate quickly with each other?

(A)

(B)

(C)

(D)

15. Which of these is INCORRECT regarding plant part and its function? (A) Flower Makes seeds for the plant. (B) Stem Supports the plant. It contains thin tubes for carrying food, minerals and water. (C) Leaves Make food for the plant. They take in carbon dioxide and release oxygen into the air. (D) Roots Absorb sunlight and make food. 16. A student placed a healthy plant outside. Five days later, the plant looked dried and wilted as shown in the figure. The plant most likely needs ____. (A) Soil (B) Water (C) Sunlight (D) All of these SPACE FOR ROUGH WORK

Day 1

Day 5


5

17. Which system of our body controls all actions of the body? (A) Digestive system (B) Breathing system (C) Circulatory system (D) Nervous system 18. A food web is shown here. Which animal eats both plants and animals?

(A)

(B)

(C)

(D)

19. A student builds a model of a weather tool. Which weather condition does this tool best measure? (A) Wind speed (B) Air pressure (C) Rainfall

Pushpin

Cup Pencil

Straw

(D) Air pollution 20. Students have a stack of cards to organise into groups. Each card has a picture of a different object. The cards that belong to Group 1 are shown below: Group 1

Which picture card would best be placed in Group 1? (A)

(B)

(C) SPACE FOR ROUGH WORK

(D)


6

21. Tadpoles live in water. The gills best help the tadpole survive in water by ____. (A) Helping the tadpole stay warm (B) Helping the tadpole find prey (C) Helping the tadpole get oxygen (D) Helping the tadpole to swim Key

22. Mr. Mack drew a map of his farm as shown here. What is located towards northeast of his farm ?

Swings

(A) House

House

(B) Barn (C) Swings (D) Hospital

N W

Barn

E S

Pond

23. Which characteristic helps a frog to swim in water? (A) The size of its eyes. (B) The pattern on its skin. (C) The shape of its feet. (D) The size of its body. 24. Based on the given chart, desert plants most likely compete for ____. (A) Light (B) Water (C) Space (D) Animals

Desert facts Harsh environment Less than 10 inches of rain per year Hot during day, cold at night Few plants and animals

25. A student throws a ball towards the net, as shown. The ball falls back down. What force causes the ball to fall back down? (A) The push of the ball. (B) The pull of gravity. (C) The push of the player. (D) The push of gravity. SPACE FOR ROUGH WORK


7

26. What would most likely be the materials of which two equal sized carrier bags X and Y carrying equal weights are made ? (A) XPlastic; YJute (B) XSilk; YJute (C) XPaper; YPlastic (D) XJute; YPlastic 27. In the given figure, X can be made of which of these materials ? 1. Plastic 2. Metal 3. Glass 4. Rubber 5. Wood 6. Wax (A) 1 or 6

(B) 5 only

(C) 3 or 4

X

(D) 1 or 2 or 5

28. The person who makes the plan of the house is known as _____. (A) Architect

(B) Carpenter

(C) Electrician

(D) Painter

29. Which of the following is a reversible change ?

(A)

(B)

(C)

(D)

30. Rajesh is travelling from his home town to the city where he works. On his way he finds an injured person. Which of the given symbols will help him to locate a hospital?

(A)

(B)

(C)

SPACE FOR ROUGH WORK

(D)


8

31. Refer the given figure showing changes in flag's shadow during the day. Shadows P, Q and R represent different times N E W of the day. At what time would Preeti like to have ____. S (i) Breakfast (ii) Evening snacks (A) (i) R, (ii) Q (B) (i) P, (ii) Q P (C) (i) R, (ii) P (D) (i) P, (ii) R

R Q

32. The largest organ of our body is ____. (A) Lungs (B) Skin

(C) Liver

(D) Intestine

33. Which of these is INCORRECT ? (A) Lungs : Nose (B) Stomach : Mouth

(C) Heart : Eyes

(D) Brain : Ears

34. Why junk food like fried chips, pakoras, burger are not considered healthy ? (A) Because they contain lots of fat and carbohydrate and less of protein. (B) Because they contain lots of protein and carbohydrate and less of fat. (C) Because they contain lots of fat and protein and less of carbohydrate. (D) Because they contain less of fat, carbohydrate and protein . 35. Which of these works on mechanical energy?

(A)

(B)

(C)


(D)

15th


2

| 15th NSO | Level-II | Class 3

MENTAL ABILITY 1. What was the time 3 hours 50 mins ago, if the current time shown by the clock is

10:30? (A) 5:40

(B) 6:40

(C) 6:30

(D) 7:40

2. If you count in 5s, starting with 3, the sequence looks like this : 3, 8, 13, ......... What is the 15th number in this sequence? (A) 73 (B) 78 (C) 63 (D) 68 3. Which item is the heaviest ?

(A) Eraser

(B) Pen

(C) Stapler

(D) Bag

4. Match the multiplications given in Column-I with their results in Column-II.

Column-I Column-II (a) 49 × 31 (i) 1197 (b) 63 × 19 (ii) 3496 (c) 42 × 29 (iii) 1519 (d) 92 × 38 (iv) 1218 (A) (a) - (iii); (b) - (i); (c) - (ii); (d) - (iv) (B) (a) - (iii); (b) - (i); (c) - (iv); (d) - (ii) (C) (a) - (iii); (b) - (ii); (c) - (i); (d) - (iv) (D) (a) - (iii); (b) - (iv); (c) - (i); (d) - (ii)

5. Which of the following has

(A) Q

P

(B) P

of its contents shaded?

Q

(C) R


R

(D) S

S

3

15th NSO | Level-II | Class 3 |

6. Which of the following options makes the given number sentence true ? 729

Divided by 3

Multiply by 5

(A) Add 5 (C) Minus 5

?

= 1210

(B) Divided by 5 (D) No need of any operation

7. Digit at the tens place in the number that comes as a difference between

5 hundreds 6 tens 13 ones and 7 hundreds 2 tens 15 ones is _________. (A) 7 (B) 6 (C) 5 (D) 4

8.

_______ are needed to make ` 595. (A) Five ` 100 note and nine ` 5 note (B) Ten ` 50 note and nine ` 10 note (C) Ten ` 5 note and one ` 100 note (D) Five ` 100 note and nineteen ` 5 note

9. If Jug

, Kettle

Barrel

, then ______ jugs are needed to

fill an empty barrel.

(A) 5

(B) 4

(C) 3

(D) 6

10. Find the correct mirror image of the figure (x), if mirror

is placed vertically to the left.

Fig. (x)

(A)

(B)

(C)


(D)

4


science 11. Ritesh drove and reached his home at about 4.00 pm. He wanted to find a park that would have the most shade. Which of the car parks should he choose to park his car?

(A) Park P

(B) Park Q

(C) Park R

(D) Park S

12. Study the given classification chart. Which of the following sets of headings for groups D, E and F is/are correct? X Y Z

Group D Insects Plant-eaters Animals that crawl

(A) X only

(B) Y only

Group E Birds Animal-eaters Animals that fly

Group F Mammals Animal and plant-eaters Animals that walk

(C) X and Y

(D) Y and Z

13. In addition to stem, branches and leaves, the shoot of a plant bears _______. (A) Fruits (B) Flowers (C) Buds (D) All of these 14. Sandhya observed the Moon from 14 January to 28 January. She noted that the Full Moon appeared on 18th January. Which of the following options most correctly shows the phases of the Moon Sandhya observed on 14 th January and 28th January respectively?

14th January

28th January

(A)

(B)

(C)

(D)

14th January


28th January

5


15. Which beak belongs to the bird that drinks nectar from flowers ?

(A)

(B)

(C)

(D)

16. Richa has prepared a model to create coloured smoke as shown in the figure.

Working of this model depends upon which of these principles? (A) Hot water is lighter than cold water. (B) Hot water is heavier than cold water. (C) Cold water rises over hot water. (D) Cold water expands more than hot water.

17. The given picture shows a river flowing

downstream towards the sea. Situated near the river is a factory which occasionally discharges waste water into the river and, a farm where pesticide is used. A water treatment plant which supplies water for home use is to be built. The water treatment plant treats water which is pumped into it from the river. Which position

would be suitable for the treatment plant? (A) P (B) Q (C) R

(D) S

18. Which one of the following questions could all these pupils answer? (A) Is the orchid purple or blue? (B) Is the watch ticking or not? (C) Is the coffee cold or hot? (D) Is the soap scented or not? 19. Select the odd one out based upon their life forms. (A) Silkmoth (B) Dragonfly (C) Mosquitoes SPACE FOR ROUGH WORK

(D) Housefly

6


20. Which of these actions will help in keeping environment clean?

(A)

(B)

(C)

(D)

21. Which of these actions requires both push and pull forces?

(A)

(B)

(C)

(D)

22. Study the given food web and select the correct number of food chains that consist of only three organisms. (A) 4 (B) 5 (C) 7 (D) 8 23. Refer the given diagram of the human digestive system and answer the following question. Which of the labelled parts (i) contains digestive juices? (ii) contains semi-solid wastes called faeces? (i) (ii) (A) E H (B) F G (C) F H (D) I G 24. A man standing 150 m away from a cliff

fires a gun. A second man who is standing 300 m further away from first man hears the gun

1 second after he sees the flash. The second man will hear the echo from the cliff _______. (A) 1 second after seeing the flash (B) 2 seconds after hearing the gun (C) 2 seconds after seeing the flash (D) 4 seconds after hearing the gun SPACE FOR ROUGH WORK

7


25. A plastic bin has a capacity of 1500 cm 3 . 2500 cm 3 of air is pumped into it. What will be the volume of air inside the plastic bin? (A) 1000 cm3 (B) 1500 cm3 (C) 2500 cm3 (D) 3500 cm3 26. A note is shown which Shekhar made about different types of houses. Unfortunately, when he had finished writing, accidentally some water spilt over the page and smudged some of the keywords. Select the correct sequence of smudged words to complete the note. (A) Nomads, Tent, Caravans, Kutcha (B) Igloo, Caravans, Tent, Pucca (C) Igloo, Caravans, Tent, Kutcha (D) Nomads, Tent, Caravans, Stilt X

27. Study the given family tree. X and Y are Adi's

Y

maternal grandparents. He has ________

sibling(s). (A) No (B) One (C) Three (D) Four

Key:

Male

Female

28. Which of the following diagrams shows the correct way of reading a thermometer?

(A)

(B)

(C)

(D)

29. Why do you think stone pebbles are placed around trees in urban area instead of paving solid concrete around the trees? (A) The stone pebbles help to support the roots of the trees. (B) The stone pebbles allow the trees to grow neatly. (C) The stone pebbles allow air and water to get to the roots of the trees. (D) The stone pebbles allow the leaves to fall through the gaps and fertilize the trees. SPACE FOR ROUGH WORK

8


30. Which one of the following statements is true for the

given plant? (A) The plant has strong and thick stem. (B) The plant has tendrils to get support. (C) The plant can live in dry conditions. (D) The plant does not make its own food.

31. In order to grow a new money plant, you should cut the

plant at the place indicated by line ______. (A) P (B) Q (C) R (D) S

32. Select the correct match. (A) Spinal cord - Reproductive system (C) Heart - Nervous system

(B) Aorta - Circulatory system (D) Windpipe - Digestive system

33. Select the incorrect statement. (A) Planets reflect the light of the Sun that falls on them. (B) Rotation of the Earth on its axis causes days and nights. (C) The group of planets are called constellations. (D) A satellite is an object that moves around a planet. 34. In winters, you must have observed that people rub their hands together

to generate heat in the hands. How does heat generate? (A) Movement of hands gains heat from the surroundings. (B) Friction against movement of hands generates heat energy. (C) Heat travels from the surrounding to the hands. (D) All of these

35. Select the incorrect comparison between solid and liquid. Solid Liquid (A) It has definite size. It doesn't have any definite size. (B) It doesn't have definite volume. It has definite volume. (C) It doesn't flow easily. It flows easily. (D) It doesn't take the shape of the container. It takes the shape of the container. SPACE FOR ROUGH WORK

16th


2

16th NSO | Class-3 | Level 2

MENTAL ABILITY 1. The given table shows the number of hours five friends watch television in four days. Day Name Meeku Mohit Manoj Mintu Minku

Monday

Tuesday

4 3 4 3 7

5 5 9 6 2

hours hours hours hours hours

Wednesday


6 8 5 5 8

Thursday


2 hours 3 hours 6 hours 5 hours 10 hours

Which two friends spent the same time watching television in four days?

A. Meeku and Manoj C. Mohit and Mintu

B. Minku and Mintu D. Minku and Mohit

2. The figure shows the weights of a container with different number of balls placed in it. What is the weight of the empty container?

A. B. C. D.

500 700 600 800

0g

0g

g g g g

1500 g

500 g

1500 g

1000 g

500 g

1000 g

3. Lakshay paid ` 895 for 2 teddy bears, 4 toy cars and 3 toy aeroplanes. What was the cost of each toy aeroplane?

A. B. C. D.

` ` ` `

4. 48 ÷

103 133 266 113

Teddy bears ` 28 each =

. If

Toy cars ` 110 each

is an odd number and

is an even number, what could

these two numbers be?

A.

= 9,

= 24

B.

= 3,

= 16

C.

= 4,

= 12

D.

= 5,

=8

Space for Rough Work

3


5.

Megha is standing in a line. She is the fourth person from the front and thirteenth person from the back. How many persons are there in the line? A. 14

6.

284 252 246 294

198

222

246

270

?

B. 6

C. 8

D. 10

Priya went for her tuition class. How long did the class last? A. B. C. D.

9.

D. 17

How many 4-digit odd numbers can you make using the digits 0, 1, 7 and 8 without repeating any of the digits? A. 4

8.

C. 16

Which of the following numbers will come next in the number pattern below? A. B. C. D.

7.

B. 15

If

2 3 2 2

hours hours hours hours

31 minutes 2 minutes 58 minutes 29 minutes

+

= 4882 and

A. 701

Tuition start

+

B. 500

+

= 6871, then what is the value of C. 904

10. Which of the following fractions is the smallest? 1 1 1 A. B. C. 2 3 4

SCIENCE 11. Figure 1 shows the volume of ink in a measuring cylinder initially. Some ink was discarded and the volume of the remaining ink is shown in Figure 2. How much ink was discarded? A. B. C. D.

1.8 2.1 2.2 2.4

cm3 cm3 cm3 cm3 Space for Rough Work

D. 808

D.

1 5

Tuition over

–

?

4


12. The given diagram shows three kinds of birds (d, e and f) possessing different types of feet. Which of the following does not hold true regarding birds d, e and f?

A. Birds of type 'd' are flesh-eating birds like hawks and eagles. B. 'f' type of birds are perching birds that can hold on to a branch. C. In birds of type 'e', three front toes are joined by web which helps them to push water back while swimming. D. In birds of type 'f', talons help them to catch live prey like rats and small birds.

13. When ammonia gas is liquefied, there is a change in the _________ of the particles. A. Mass

B. Shape

C. Size

14. Study the given graph carefully. What is the aim of the experiment?

A. To see if water is needed for plant growth. B. To see if different amount of water affect the growth of seedlings. C. To prove that plants grow taller over time. D. To show that water is needed for germination of seeds.

15. Study the given diagram showing features of a type of soil 'X' and select the correct option regarding it.

A. B. C. D.

Plants grow well in it It is used to make toys, flower pots, idols, etc. It is used to make glasses It is found on seashore and also in deserts

16. Match the given columns and select Problem (1) Mosquitoes and germs (2) Insufficient sunlight and fresh air (3) Flies and other insects

A. 1-c, d; 2-b; 3-a C. 1-b, c; 2-a; 3-a, d

D. Speed Height of seeding/(cm)

10

20 30 40 50 60 70 Amount of water/(mL)

Soil particles Soil particles are large in stick together 'X' size and have and they can a lot of space hold a lot of between water them

the correct option. Solution (a) Verandahs and balconies (b) Wire netting on doors and windows (c) Closed dustbins for garbage (d) Drainage system to carry away the dirty water B. 1-d; 2-a; 3-b, c D. 1-b, c, d; 2-b; 3-a


5


17. The temperature changes in a kettle of water was recorded for 14 minutes and represented in the graph as shown. Which of the following statements is/are true? 1. The water in the kettle was initially in the liquid state. 2. There was less water in the kettle at point 'e' than at point 'a'. 3. The water took 6 minutes to reach its boiling point after it was heated. 4. The kettle of water was heated for 6 minutes.

A. 1 and 2

B. 1 and 3

C. 1, 2 and 3

D. 1, 3 and 4

18. For which of the following activities, sense of sight is the most important?

A.

B.

C.

D.

19. A shadow can undergo change in ___________.

A. Shape

B. Size

C. Direction

D. All of these

20. The given diagram shows a box being pushed. Identify the three forces, W, X and Y acting on the box. W A. Friction C. Friction

X Push Gravity

Y W Gravity B. Push Push D. Gravity

X Friction Push

Y Gravity Friction

21. The given diagram represents the water cycle. Select the INCORRECT option regarding the processes that are labelled as a, b and c. A. In process 'b', the water vapours that rises, cools down to form tiny drops of water which come together to form clouds. B. In process 'a', water from rivers, lakes and seas changes to water vapours due to the warmth of sunlight. C. In process 'c', clouds formed in process 'b' become full and fall back to Earth as rain. D. None of these Space for Rough Work

6


22. Study the given diagram carefully. Which of the leaf/leaves can perform photosynthesis?

A. B. C. D.

Q only R and S Q, R and S P, Q, R and S

23. Select the correct classification of animals on the basis of their mouth parts that suit their eating habits. A. B. C. D.

Masticating Frog Cow Lion Snake

Gnawing Rat Squirrel Python Butterfly

Lapping Rabbit Cat Peacock Lizard

24. The part of human digestive system where most of the digested food enters the circulatory system is __________.

A. Stomach

C. Small intestine

B. Liver

D. Oesophagus

25. Select the option in which the odd one among the others is encircled correctly.

A. Cycle , Car, Aeroplane, Ship

B. Aeroplane, Hot balloon, Helicopter , Boat

C. Ferry , Ship, Submarine, Car

D. Car, Bus, Scooter , Auto-rickshaw

26. Select the correct option regarding the given figures showing some activities.

A. Digestive system is involved in activity ‘d’. B. Skeletal and muscular systems are mainly involved in activity ‘e’. C. Respiratory system is involved in activity ‘f’. D. All of these.

27. The events below show what happens when a seed germinates. 1. The shoot appears. 2. The root appears. 3. The first leaf appears. 4. The seed coat breaks. Which of the following represents the correct sequence of these events?

A. 2, 1, 3, 4

B. 2, 1, 4, 3

C. 4, 1, 2, 3

D. 4, 2, 1, 3

28. Intake of ___ will prevent us from scurvy disease and will also help in curing common cold. A. Green leafy vegetables B. Citrus fruits C. Pulses D. Whole wheat bread Space for Rough Work

7


29. Which among the following professionals is associated with hospitality industry?

B.

A.

C.

D.

30. Match the columns and select the correct option. Column I Column II (a) Bread and rice (1) Food that give us energy (b) Fruits and vegetables (2) Food that help us grow (c) Milk and pulses (3) Food that keep us healthy

A. a-2, b-3, c-1

B. a-1, b-2, c-3

C. a-1, b-3, c-2

D. a-3, b-1, c-2

ACHIEVERS SECTION 31. The given graph shows Raju's pulse rate. Which of the following is the most probable condition during which pulse rate was recorded?

A. Raju ran for 10 minutes, rested for 10 minutes and ran again. B. Raju did warm up exercise for 10 minutes, rested for 20 minutes and ran again. C. Raju slept for 1 hour, walked for 1 hour and slept again. D. Raju walked for 1 hour, rested for half an hour and walked again.

32. Which of the following holds true for water transport? 1. It provides door to door service. 2. Perishable goods like milk, fruits and vegetables are quickly carried by it. 3. It is very useful for transporting heavy and bulky goods. 4. It is a better mode of transportation for petroleum and its products as it involves crosscontinental transfers. 5. It is very useful at the time of natural or any other calamities for saving people or supplying goods of their basic requirements immediately.

A. 3 and 4

B. 1, 2 and 5

C. 2, 3 and 4

33. Based on the given flow chart, what could animals P, Q and R be? A. B. C. D.

P Chicken Butterfly Mosquito Chicken

Q Butterfly Chicken Chicken Mosquito

R Mosquito Mosquito Butterfly Butterfly Space for Rough Work

D. 4 and 5

8


34. The given figure shows phases of the Moon as seen from the Earth surface (as shown with arrow point). The following statements describe the lunar cycle. Select the correct statement(s). (a) The lunar phases progress from Full Moon, Crescent Moon, First Quarter Moon, Gibbous Moon and New Moon, before returning through Gibbous Moon, last Quarter Moon, Crescent Moon and Full Moon. (b) From phase 1 to 3 waxing crescent is seen and from phase 7 to 9 waning crescent is seen. (c) From phase 3 to 5 waxing gibbous is seen and from phase 5 to 7 waning gibbous is seen. (d) 50% illuminated Moon is seen in phase '3' as well as in phase '7'.

A. a only

B. a and c

35. Mr. Shivam hangs two soft drink Yogesh : cans on each end of a balance and keeps them hanging till they get Rohit : evenly balanced. He then gently pulls the tab open on one can Viraj : until he hears a whoosh sound. He then lets the cans hang in balance. After thirty minutes he observes that the balance has got disturbed. Arun : Pupils of Mr. Shivam try to explain this as given. Who among the pupils is/are INCORRECT?

A. Yogesh and Arun B. Rohit only

C. a, b and d

D. b, c and d

Soft drink has compressed carbon dioxide gas. On opening the can, air rushes inside the can, making it weigh heavier. On opening the can, soft drink evaporates in the air immediately, making the opened can weigh lesser. Once the can is opened, carbon dioxide in the soft drink slowly escapes from the liquid, making the opened can weigh lesser.

C. Rohit and Viraj


D. Arun only

ANSWER KEYS 14 th NSO 1. 8. 15. 22. 29.

(B) (D) (D) (A) (B)

2. 9. 16. 23. 30.

(D) (D) (B) (C) (B)

3. 10. 17. 24. 31.

(A) (C) (D) (B) (D)

4. 11. 18. 25. 32.

(B) (D) (A) (B) (B)

5. 12. 19. 26. 33.

(C) (A) (A) (D) (C)

6. 13. 20. 27. 34.

(C) (D) (A) (B) (A)

7. 14. 21. 28. 35.

(B) (B) (C) (A) (A)

5. 12. 19. 26. 33.

(A) (B) (B) (D) (C)

6. 13. 20. 27. 34.

(C) (D) (C) (A) (B)

7. 14. 21. 28. 35.

(B) (B) (C) (D) (B)

5. 12. 19. 26. 33.

(C) (B) (D) (D) (A)

6. 13. 20. 27. 34.

(D) (D) (B) (D) (D)

7. 14. 21. 28. 35.

(C) (B) (D) (B) (C)

15 th NSO 1. 8. 15. 22. 29.

(B) (D) (C) (D) (C)

2. 9. 16. 23. 30.

(A) (A) (A) (B) (B)

3. 10. 17. 24. 31.

(D) (D) (D) (C) (A)

4. 11. 18. 25. 32.

(B) (C) (C) (B) (B)

16 th NSO 1. 8. 15. 22. 29.

(C) (D) (A) (B) (A)

2. 9. 16. 23. 30.

(B) (C) (B) (B) (C)

3. 10. 17. 24. 31.

(B) (D) (A) (C) (A)

4. 11. 18. 25. 32.

(B) (B) (A) (A) (A)

Class 3 Nso 3 Year e Book Level 2 14 2

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