1

eNGLISH

BAL BHARATI PUBLIC SCHOOL, NOIDA

PRACTICE SHEET: APRIL 2018

Date of Issuance: ________________ Date of Submission: ________________ SECTION A (READING)

Q1. Read the following passage and answer the questions that follow:

Children born in heavy traffic areas could be at greater risk of developing asthma due to genetic changes

brought on by pollution and acquired in the womb, researchers said.

The new study conducted by researchers from the University of Cincinnati and Columbia University

Mailman School of Public Health is published in the journal PLoS ONE.

The researchers studied umbilical cord blood from New York City children, and discovered evidence of a

possibly new biomarker – an epigenetic alteration in the gene ACSL3 – associated with prenatal exposure

to polycyclic aromatic hydrocarbons (PAHs).

They pointed out that such chemical compounds are created as byproducts of incomplete combustion from

carbon-containing fuels, resulting in high levels in heavy-traffic areas. Past studies have linked exposure to

PAHs to diseases like cancer and childhood asthma.

Complete the following statements:

(1) Children in heavy traffic areas ___________________ .

(2) The researchers pointed out that _________________ from carbon-containing fuels.

(3) The researchers said that ______________________ asthma in children.

(4) Find out words from the passage that have the same meaning as the following:

(a) A chest illness that causes difficulty in breathing

(b) Information that proves something

SECTION B (WRITING)

2

Q2. You are Sumit/Seema, the Headboy/ Headgirl of your school. Draft a Notice for the school notice board

informing the students about an inter-house Debate Competition for classes VI – VIII. Give all the

necessary details. Word limit: 50 words.

Q3. On the basis of the introduction given below, complete the story in about 250 words:

Three friends decided to go for a picnic. They selected the sea beach near their home as the ideal venue.

They reached there early morning and decided to have a dip in the sea before starting to play any games.

Suddenly…..

SECTION C (GRAMMAR)

Q4. Fill in the blanks with suitable Modals:

1. We ____ respect our elders.

2. ____ you help me with this quiz?

3. I _____ not go to school tomorrow.

4. My father _____ buy me a new cycle if I do well in my exams.

5. Every citizen _________ respect the national flag.

6. It ____ or ______ not rain tonight.

7. We ____ be able to reach there by nine if we maintain a good speed.

8. When he was a kid he _____ recite all the nursery rhymes without making any mistake.

9. ____ I come in, Sir?

10. We _____ be visiting the Taj Mahal and Fatehpur Sikri during our Agra trip.

Q5. There is an error in each line of the paragraph given below. Write the wrong word in your answer sheet

followed by the correct word against the correct blank number. Underline the correct word:

Longer before Newton, Aristotle and Galileo e.g Longer long

have done a lot of research on the subject (a)

of gravity. Aristotle stating that a (b)

heavier object will fall to the Earth (c)

fastest than a lighter one. Legend has (d)

it that Galileo disproved those theory by (e)

throwing down object with different weights (f)

from a Leaning tower of Pisa and (g)

proved that it took practically the same time (h)

to hit the ground.

SECTION D (LITERATURE)

3

Q6. RTC ―Ring out wild bells, to the wild sky

The flying cloud, the frosty light

The year is dying in the night,

Ring out, wild bells and let him die‖

Qa. Name the poem and the poet.

Qb Explain the line, ‗The year is dying‖

Q7. Imagine you are the Hermit King in the story Three Questions. Write a letter to your best friend telling

him about your meeting with the Hermit and how you yourself got the answers to your questions.

WORD POWER

Q8. Fill in the blanks with the correct word from the brackets:

1. When I celebrated my birthday at a restaurant, the cake was ___________ from the restaurant.

(complimentary/ complementary)

2. In Geometry we study about ______________ and supplementary angles (complimentary/

complementary)

3. I needed a pen so I went to the __________ shop (stationary/ stationery)

4. The car was running at a high speed and collided with a ______________ truck (stationery/

stationary)

5. The mall was _________ inaugurated by the minister (formerly/formally)

6. If I make a mistake I will ________ it (accept/ except)

7. The _________ of the school addressed the students in the assembly (Principal/ Principle)

8. I have ______ finished my work (all ready/ already)

9. He was _______ the President of the Society, now hr is retired. (formerly/ formally)

10. The lovely _______ at Manali filled us with joy. (site/ sight)

PRACTICE SHEET: MAY 2018

Date of Issuance: ________________ Date of Submission: ________________

SECTION A (READING)

Q2. Read the given passage carefully and answer the questions that follow:

He raised his head and laying his ears back came at me showing his teeth.

4

I snatched at my other gun but almost before I had touched it, he was at me and knocking me over into the

snow, had passed right over me.

‗Thank goodness, he has left me,‘ I thought.

I tried to rise, but something pressed me down and prevented my getting up. The bear‘s rush had carried

him past me, but he had turned back and had fallen on me with the whole weight of his body. I felt

something heavy weighing me down, and something warm above my face, and I realized that he was

drawing my whole face into his mouth. My nose was already in it and I felt the heat of it, and smelt his

blood. He was pressing my shoulders down with his paws so that I could not move. All I could do was to

draw my head down towards my chest away from his mouth, trying to free my nose and eyes, while he tried

to get his teeth into them. Then I felt that he had seized my forehead just under the hair with the teeth of his

lower jaw, and the flesh below my eyes with his upper jaw and was closing his teeth. It was as if my face

were being cut with knives. I struggled to get away, while he tried to close his jaw like a dog gnawing. I

managed to twist my face away but he began dragging it again into his mouth.

Complete the following statements:

1. The bear raised his head, came at me and ____________________ 2. The bear knocked the narrator _____________________ 3. _______________________ on the narrator with the whole weight of his body. 4. The bear was pressing __________________ 5. The narrator felt as if his face __________________

SECTION B (WRITING)

Q2. Your best friend has got selected to represent your school for an inter-school competition. You were

trying very hard for the same. You are very disappointed and as a result, have picked up a fight with your

friend. Now you are repenting and feeling bad about it. Write a Diary Entry expressing your feelings in not

more than 200 words.

Q3. Write an e-mail to your friend congratulating him on his selection in the school Football team and telling

him how happy you are for him. Do not exceed 150 words

SECTION C (GRAMMAR)

Q 4. Rearrange the following jumbled words to make meaningful sentences:

(a) sort of / have / home / do / you / what / ?

(b) in a / flat / live / I /in the / city.

(c) far / nearest / market place / home / is the / how / from your /?

(d) five minutes / from my / it is / only / home.

5

(e) Recipe / new / a / has / she / learnt

(f) English / book /a / spoken / on / wrote / he / year / last

(g) Students / the / cititzens / tomorrow / today / of / the / are / of

(h) Day / built / Rome / not / a / in / was

(i) Belongings / he / his / returned / all

(j) Attack / in / terrorists / the / the / killed / villagers / many

Q5. .Fill in the blanks with the suitable verb forms:

I (a)__________ (visit) my friend‘s house. When I (b)____________ (go) to his house, he

__________(left) for office. I think he (c)_________ (come) back at 4o‘clock.It is strange that we are

(d)____________(meet) after a long time. Friends should meet regularly. For some years we did (e)

____________( meet) regularly. I don‘t know what (f)____________ (happen) then. We did not

(g)___________(see) each other for a long time. But now we are (h) ______________(meet) again.

SECTION D (LITERATURE)

Q6. Do you think that Brathwaite was right in hurting Denham? Why / why not?

Q7. ―We did not weave the web of life

We are merely a strand in it.‖

Qa. Name the poem and the poet

Qb. What does the poet mean by these lines?

WORD POWER

Q8. Use the following pairs of words (Homophones) in sentences of your own to bring out their meaning:

Assent ascent, Accept except, Principal principle, Counsel council, Conscious conscience, Lighting

lightening, Allowed aloud, Adapt adopt, Conservation conversation, Desert dessert

ekl & vizSy

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vo.kZuh;) ]vusdkFkZd 'kCn (vFkZ&dj) ]foykse 'kCn (vFkZ&xqIr) ] i;kZ;okph

'kCn (vknj&bPNk) , yksdksfDr (1&8) jpukRed&ys[ku % vukSipkfjd i= ] vuqPNsn ] fp=&o.kZu ] vifBr xn~;ka’k

1& mfpr 'kCnksa dks feyku djssa %&

fyfi Hkk"kk

jkseu iatkch

nsoukxjh mnwZ

xq#eq[kh vaxzsth

vjch fganh

2& o.kZ&foPNsn djsa %&

L=h %

laidZ %

mRiUu %

3& Hkk"kk ds nks Hksn gSa & ----------------------------------------------------------------------------A

4& fganh fnol euk;k tkrk gS & -----------------------------------------------------------

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rLdjh vkSj Hkz"Vkpkj ds lekpkj Hkjs jgrs gSaA vkjksi&izR;kjksi dk dqN

,slk okrkoj.k cu x;k gS fd yxrk gS] ns'k esa dksbZ bZekunkj vkneh

gh ugha jg x;k gSA gj O;fDr lansg dh n`f"V ls ns[kk tk jgk gSA tks

ftrus gh mWaps in ij gSa muesa mrus gh vf/kd nks"k fn[kk, tkrs gSaA

mi;ZqDr xn~;ka’k ds vk/kkj ij laKk ds rhuksa Hksn fy[ksaA

6& la;qDr O;atu fy[kdj muls nks 'kCn fy[kasA

7& vuqLokj ,oa vuqukfld ls cuus okys nks&nks 'kCn fy[ksaA

8& foykse fy[ksa %&

mRFkku - --------------

var - --------------

nh?kkZ;q - --------------

fojkx - --------------

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b/kj ns[k rks] m/kj ns[k rks

ukp jgs gSa meM+&?kqeM+ dj

dkys ckny rfud ns[k rks

rsjs izk.kksa esa Hkjus dks

u;s jkx yk, gSa

mi;ZqDr in~;ka’k ds vk/kkj ij fuEufyf[kr iz’uksa ds mRrkj nhft,&

d& dfo us fdls lacksf/kr fd;k gS\

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Xk& cknyksa dh D;k fo’k s"krk crkbZ xbZ gS\

?k& fdlku ds thou esa D;k ifjorZu vk,xk\

10& ^ckt vkSj lkWai* ikB esa vk, la;qDrk{kj fy[ksa %&

J

K =

{k

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cl vkSj vkids chp dksbZ ikWap laokn fy[ksaA

12& rRle rn~Hko 'kCn fy[ksa &

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va/kk

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(va’k&vfojke), eqgkojs (1&15) jpukRed&ys[ku % laokn&ys[ku ] vifBr cks/k

1& rRle rn~Hko 'kCn fy[ksa &

rRle rn~Hko

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vack

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cuh jgh gSA i= tks dke dj ldrs gSa] og lapkj dk vk/kqfudre

lk/ku ugha dj ldrk gSA i= tSlk larks"k Qksu ;k ,l,e,l dk

lans'k dgkWa ns ldrk gSA i= ,d u;k flyflyk 'kq: djrs gSa vkSj

jktuhfr] lkfgR; rFkk dyk ds {ks=ksa esa reke fookn vkSj ubZ ?kVukvksa

dh tM+ Hkh i= gh gksrs gSaA nqfu;k dk reke lkfgR; i=ksa ij dsafnzr

gS vkSj ekuo lH;rk ds fodkl esa bu i=ksa us vuwBh Hkwfedk fuHkkbZ

gSA i=ksa dk Hkko lc txg ,d&lk gS ] Hkys gh mldk uke

vyx&vyx gksA i= dks mnZw esa [kr] laLd`r esa i=] dUUkM+ esa dkxn]

rsyqxq esa mRrje~] tkcw vkSj ys[k rFkk rfey esa dfMn dgk tkrk gSA

i= ;knksa dks lgstdj j[krs gSa] blesa fdlh dks dksbZ lansg ugha gSA

d& i= ds dkSu&dkSu ls uke crk, x, gSa\ [k& i= lapkj ds fdlh Hkh lk/ku ls egRoiw.kZ D;ksa gS\

x& ys[kd us i=ksa dh D;k mi;ksfxrk crkbZ gS\

?k& ^dsafnzr* % ewy 'kCn rFkk izR;; vyx djsaA

3& esjk eu dHkh&dHkh cSB tkrk gSA lekpkj&i=ksa esa Bxh] MdSrh] pksjh]

rLdjh vkSj Hkz"Vkpkj ds lekpkj Hkjs jgrs gSaA vkjksi&izR;kjksi dk dqN

,slk okrkoj.k cu x;k gS fd yxrk gS] ns'k esa dksbZ bZekunkj vkneh

gh ugha jg x;k gSA gj O;fDr lansg dh n`f"V ls ns[kk tk jgk gSA

mi;ZqDr xn~;ka’k ds vk/kkj ij fon’kh 'kCn NkWaVdj fy[ksaA

4& fyax cnydj iqu% fy[ksa&

d& Xokyk xk; pjk jgk gSA ] [k& Nk= cgqr vkKkdkjh gSA

x& iafMr us ykykth dks iz.kke fd;kA

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nokbZ

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-------inkFkZ

7& eqgkojs vkSj vFkZ dk feyku djsa ,oa okD; Hkh cuk,Wa %&

eqgkojk vFkZ

var ikuk ew[kZ

vaxwBk fn[kkuk Vky&eVksy djuk

vDy dk nq’eu le; iM+us ij euk djuk

vxj&exj djuk Hksn tkuuk

8& 19 vxLr] 1942 dks Jherh v#.kk vklQ vyh us xksokfy;k Vsad

eSnku esa >aMk Qgjk dj vaxzstksa ds lkeus Hkkjr dh Lokra=;&psruk

dk mn~?kks"k fd;kA vle dh dudyrk eydVjh uked LFkku ij >aMk

Qgjkrs gq, 'kghn gks xbZ] fenukiqj esa ekrafxuh gktjk us xksyh yxus

ds ckn Hkh >aMk gkFk ls ugha NksM+kA rfeyukMq ds ;qod fr:Iiqj

dqekju ,d etnwj vf/kos'ku esa tc frjaxk ysdj vkxs c<+s rks mu ij

xksfy;ksa dh ckSNkj gqbZA

mi;ZqDr xn~;ka’k ds vk/kkj ij fuEufyf[kr iz’uksa ds mRrj nhft, &

d& fdl fnu ds fo"k; esa crk;k x;k gS\

[k& bl fnu ls lacaf/kr izeq[k uke fy[ksaA

x& xn~;ka’k esa dksbZ nks Hkkookpd laKk,Wa NkWaVsaA

9& lwjnkl ds inkas ds vk/kkj ij fn, x, 'kCnksa ds vFkZ dk feyku djsa %&

csuh HkqbZWa Hkw---- ck-------

xksjl dk<+r ----Vh

M 1

SUBJECT: MATHEMATICS

MONTH: APRIL

TOPIC: SQUARE AND SQUARE ROOTS & CUBE AND CUBE ROOTS

Short Answer Questions -3 Marks each

1. Give two examples to show that square of a proper fraction is less than the fraction and the

square of a negative rational number is always greater than the number.

2. Find the largest number of 3 digits which is a perfect square.

3. Find the smallest number of 4 digits which is a perfect square.

4. Is the sum or difference of two square numbers always a square number? Justify your answer

with an example.

5. The area of a square plot is 30.1401 m2. Find its side.

6. Find the least number by which 7688 should be multiplied so that the resulting number

becomes a perfect square.

7. Find the least square number which is exactly divisible by each of the numbers 8, 12, 15 and

20.

8. Which of the following are perfect squares? Show the working also.

(i) 4225 (ii) 4517 (iii)1024

9. The area of a square field is 60025 m2. A man cycles along its boundary at 18 km/h. In how

much time will he return to the starting point?

10. How many non-perfect square natural numbers lie between the squares of the following

natural numbers?

(a) 10 and 11 (b) 31 and 32

11. Find the least number of six digits that is a perfect square.

12. Find the least number which must be added to make 2000 a perfect square.

13. The area of a square field is 60025 sq-m. Find the perimeter of the field.

14. Find square root of 2 up to 3 decimal places.

15. Estimate the square root of 479.

16. Find the square root of √201.64 and find the value of √201.64

√2.0164

Long Answer Type Questions - 4 Marks each

16. 122500 plants are to be planted in a garden in such a way that each row contains as many

plants as the rows. Find the number of rows and the number of plants in each row? Which value

is being depicted here by planting trees?

17. Mr Sharma is donating his square plot whose area is 3906.25 m2 to an NGO.

Find the sides of the plot. Which value is being depicted by Mr. Sharma in this act?

M 2

18. The students of class VIII of a school donated Rs.2197 in all, for Blind Relief Fund. Each

student donated as many rupees as square of the number of students in the class. Find the number

of students in the class. What value is being depicted by students here?

19. Aditya was flying a kite which was at a height of 40m just above a tree. The string was 50m

long. How far away from the tree was Aditya flying the kite?

20. Find the least number that must be subtracted from 3999 so as to get a perfect square. Also

find that square number and its square root.

21. Write true and false:

(i) The number of digits in a square number is always even.

(ii) Square of a prime number is prime.

(iii)No square number is negative.

(iv) There is no square number between 50 and 60.

22. Consider the following pattern. Explain the pattern and hence find the value of 652 and 75

2.

252 = 625

352 = 1225

452 = 2025

23. An NGO has donated 480249 plants to a garden. These are to be arranged in such a way that

the number of plants in each row and each column are equal. How many plants are arranged in

each row. Which value is being depicted by NGO from its this act?

24. Write Pythagorean triplets whose one number is

(i) 18 (ii) 11 (iii) 21

25. Evaluate √0.9 correct up to 2 decimal places.

TOPIC: CUBE AND CUBE ROOTS

Fill in the blanks - 1 Mark each

1. Cube root of 729______

2. The smallest number by which 81 must be multiplied to get a perfect cube is ___

3. Cube root of a natural number a is b, if a = ___

4. Cube of a natural number of the form 3x is divisible by__________

5. The unit digit of the cube root of a perfect cube ending in 2 is __________

6. The square of a negative integer is always __________

M 3

7. The square of a number ending in an even digit ends in _________digit.

8. Every whole number except 0 has _________ square roots.

9. (13, 17,19) is __________ Pythagorean triplet.

10.1+3+5+7+9+11+13+15+17 = (________)2

11. Cube of 3 x 2 is __________ x 8 .

7 343

12. The unit digit of the cube root of a perfect cube ending in 7 is _________.

Short Answer Type Questions - 3 Marks each

Q13. Is 1728 a perfect cube? Also find the number whose cube is 1728.

Q14. The volume of a cubical tank is 2197000 cb.m. Find the length of its side.

Q15. Find the cube roots of the following rational numbers by prime factorisation:

(a) 343 (b) –512 (c) 1728

1331 -3375 -4096

Q16. Find the smallest number by which 14580 should be multiplied to make it a perfect cube.

Also find the cube root of the perfect cube so obtained.

Q17. Find the cube root of 125, 2744, 474552 1nd 0.053361

Q18. Find the cube root of 85184, 13.5, 4.913 and 621.

Q19. Sanjana and Rashmi often play together and share their toys with each other. They have

plasticine cuboids of same size i.e., 5 cm, 2 cm, 5 cm. Sanjana has 5 such cuboids and Rashmi

has 10 such cuboids. Using these cuboids these girls want to make a cube.

(i) Will they be able to make a cube?

(ii) If not, how many more such cuboids are they need to form a cube?

(iii) Here, which quality these two girls show?

Q20. Find the cube root of 175616 , 13824 and 74088 by estimation method.

Date of Issuance: Date of Submission: ________

M 4

MONTH: MAY

TOPIC: POWERS AND EXPONENTS

Very Short Answer Questions (1 marks each)

Fill ups:

1. If 5x 5

-2 = 5

8, Find x.

2.

x 2

-3 = _______

3. If (52)-4

= 5n , then find n .

4. If 7x 7

-4 = 7

14, Find x.

5. If 512

X 5-4

= 5n , then find n.

6. Simplify ( 3-1

+ 4-1

+ 5-1

)0

7. Find the reciprocal of (i) (2/5)4

(ii) (-3/7)2

(iii) (-3)5.

8. Write 1024, 1250, 507 and 625 in the exponential form.

9. .00000097 can be written as _____ in the standard form.

10. The sum of a rational number and its additive inverse is always ____.

11.

(

)

x ____

Short Answer Questions (2 marks each)

Q12. Find the value of (

)

.

Q13. What is the value of ( )

.

Q14. What should be subtracted from 4/7 to get ¾.

Q15. Subtract -6/11 from -3/5.

Short Answer Questions (3 marks each)

Q 16. Simplify (3/2)-2

x (2/3)-3

x (3/2)5

Q 17. By what number should we multiply (-8)-1

so that the product is equal to 10-1

?

Q 18. By what number should we multiply 3-7

so that the product is 3?

Q 19. If = 2401, then what is the value of .

Q 20. If 4( ) = , then what is the value of x?

Long Answer Questions (4 marks each)

Q21. Mona has (

)

(

)

(

)

toffees. She wants to distribute these in poor

children. If she gives 5 toffees to each child, how many children will get toffees? What value is

Mona showing by her this act? (Value based Question)

M 5

Q22. Solve

Q23. Simplify: (

)

(

)

Q24. Find the value of x and y, if (-3)4 X (

)

= 3x5

y

Q25. Find the value of y, if (

)

(

)

(

)

TOPIC: VISUALISING SOLID SHAPES

Very Short Answer Questions: ( 1 mark each)

Q1.Fill ups:

a. Euler’s formula is, V + F –E =

b. A pentagonal prism has __________ faces.

c. Each face of tetrahedron is ________ triangle.

d. A die looks like a_________

e. T-iron used in the construction of buildings is an example of ______ prism.

f. A pyramid has always ___________ number of edges.

g. A pyramid with 8 edges has _______ faces.

h. Road roller is an example of ____________.

i. A joker’s cap is an example of a ________.

j. An octahedron has ___________ faces.

Q2. Using Euler’s formula find the unknown. – 1 mark each

Faces Vertices Edges

(i) ? 4 12

(ii) 5 ? 9

(iii) 20 12 ?

Q3. Find the value of unknowns. – 1 mark each

Name of solid Faces Vertices Edges

Tetrahedron 4 ? 6

Hexahedron ? 8 ?

Octahedron ? ? 12

Icosahedron 20 ? ?

Dodecahedron 12 ? S?

Date of Issuance: Date of Submission: _______

[1]

SUBJECT: SCIENCE

BLUE PRINT (SCIENCE)

EXAMS ONE

MARK(One

sentence)

TWO

MARKS

(Two

poins/20

words)

THREE

MARKS

(Three

sentences/30

words)

FIVE

MARKS

(Five

sentences/60

words)

TOTAL

QUESTIONS

TOTAL

MARKS

Periodic

Test-1,2

and 3

5 4 4 1 14 30

Mid Term

and Final

10 10 10 4 34 80

Application

based

(30%)

Learning

based

(20%)

Skill based

(10%)

HOTS

(10%)

Value based

(5%)

Direct

(15%)

Evaluative

(10%)

APRIL-MAY

Date of Issuance: 25/04/18 Date Of Submission: 28/04/18

Topics: Crop production and management

Pollution of air and water

ONE MARKS QUESTIONS

1. Give one word for a farm machine used both for harvesting and

Threshing ……………………………...

2. ………………….……….are released from refrigerators and air conditioners and it damage

the ………………..…layer of the atmosphere.

3. What method of irrigation will you use if you live in a dry area with shortage of water?

…………………………..

4. Name the nitrogen fixing bacteria in root nodules of leguminous

plants………………………

5. 2,4D is ………………….

6. The science which deals with breading, feeding and caring of domestic animals is called

…………………….

7. The increase in concentration of harmful chemical substances like pesticides in the body of

living organisms at each tropic level of a food chain is called……………………………..

[2]

Global warming leads to the increase in …………………………of the atmosphere.

8. Write any one chemical used to make filtered water germ-free…………..

9. Air pollution in Delhi improved after CNG buses were introduced instead of diesel buses,

since CNG buses give out less smoke. Introduction of the metro in Delhi is also expected to

reduce pollution. How?

…………………………………………………………………………………………………

……………………………………………………………

10. If water is filtered, it becomes free of all suspended impurities and hence potable. Do you

agree? Give Reason.

…………………………………………………………………………………………………

…………………………………………………………….

11. What do you think of the draw backs of seeds being unevenly distributed in a field while

sowing?

…………………………………………………………………………………………………

…………………………………………………………….

12. I have grown a few wheat plants in my garden because I like the plants, Am I growing a

wheat crop? Give reasons.

…………………………………………………………………………………………………

…………………………………………………………….

13. Why should grains be dried before storage?

…………………………………………………………………………………………………

…………………………………………………………… 6. MULTIPLE CHOISE QUESTIONS: (Choose the most appropriate answer.?

1. Which of these causes water pollution?

(a) Sewage (b) Industrial waste (c) Fertilizers and pesticides (d) All of these

2. Which of these processes can not remove germs from water?

(a) boiling (b) Filtration through Porous Pot (c) Reverse Osmosis (d) exposure to

UV light

3. Which of the following is not a pollutant unless present inexcess?

(a) Sulpher Dioxide (b) Carbon dioxide (c) Nitrogen dioxide (d) carbon monoxide

4. Which of these can cause acid rain?

(a) Sulpher Dioxide (b) Carbon dioxide (c) Nitrogen (d) carbon monoxide

7. Define air pollution. What are air pollutants?

8. What are the various sources of air pollutants?

9. What is smog? Why is it harmful?

10. What is acid rain?

11. How is the Taj Mahal affected by air pollution?

[3]

TWO MARKS QUESTIONS

1. What are silos?

2. What does the following picture represent?

3. Correct the following sequence of steps in crop production:

a. seed selection & sowing

b. preparation of soil

c. protection from pests

d. manuring

e. weeding

f. irrigation

g. storage

h. harvesting

THREE MARKS QUESTIONS

1. Why storage of food is done?

2. Explain any two sources of irrigation?

3. What are the two common forms by which we add nutrients in soil?

4. What is sowing? Explain its different ways with the help of diagram.

5. Why we use tractor driven cultivator for ploughing now a days?

6. How are disease transmitted in plants?

a. Name two common examples of agricultural crops.

b. What is agriculture?

c. What is crop?

ONE MARKS QUESTIONS

Q.1 Fill in the blanks:-

1. (i) By volume about _______ of air is nitrogen and about _________ is oxygen.

(ii) Incomplete burning of fuels produces ________ which is a _______ gas.

(iii) Carbon monoxide _________ the oxygen carrying capacity of the blood.

(iv) Petroleum refineries are a major source of gaseous pollutants like ______

and ______.

[4]

(v) _______ used in refrigerators damages the ozone layer of the atmosphere.

(vi) Ozone layer protects us from the harmful ________ rays of the sun.

(vii) _______ of the world‟s population is without safe drinking water.

(viii) We can save water by remembering the 3R‟s ____, ____ and ________.

(ix) Acid rain is formed by the oxidation followed by dissolution of ________ and

gases in rain water.

MULTIPLE CHOISE QUESTIONS: (Choose the most appropriate answer.?

(A) Which of these causes water pollution?

(a) Sewage (b) Industrial waste (c) Fertilizers and pesticides (d) All of these

(B) Which of these processes can not remove germs from water?

(a) boiling (b) Filtration through Porous Pot (c) Reverse Osmosis (d) exposure to

UV light

(C) Which of the following is not a pollutant unless present in excess?

(a) Sulpher Dioxide (b) Carbon dioxide (c) Nitrogen dioxide (d) carbon monoxide

(D) Which of these can cause acid rain?

(a) Sulpher Dioxide (b) Carbon dioxide (c) Nitrogen (d) carbon monoxide

TWO MARKS QUESTIONS

1. Define air pollution. What are air pollutants?

2. What are the various sources of air pollutants?

3. What is smog? Why is it harmful?

4. What is acid rain?

5. How is the Taj Mahal affected by air pollution?

6. What is meant by „Marble Cancer‟?

7. Write the full forms (i) CFC (ii) CNG (iii) LPG (iv) WWF

8. What is greenhouse effect? Name four greenhouse gases.

9. Write a note on global warming mentioning its effects too.

MAY

[5]

Date of Issuance: 6/05/18 Date Of Submission: 9/05/18

ONE MARKS QUESTIONS

Topic:- Micro organism friend and foe

Q1. Answer the following:

i. Microbes that reproduce only inside the hostii.

ii.A viral diseaseiii.

iii.An example of a fungiiv.

iv.Single celled microbesv.

v.Microorganism that increases soil fertilityvi.

vi.Microbes that could be present in form of coloniesvii.

vii.Bacteria which causes anthrax diseaseviii.

viii.Any one preservativeix.

ix.A plant that can show root nodule formation –

x. A useful Fungixi.

xi.A disease that has been eradicated from most parts of the world –

xii. A bacterial disease in plants-

Q2. Tick the correct option:

1. Microbe involved in curd formation:

i) Amoeba ii) Lactobacillus iii) Rhizobium iv) Bread Mould

2. Which of the following is not a fungi:

i) Bread Mould ii) Penicillium iii) Aspergillus iv) Spirogyra

3. The carrier of malarial parasite:

i) Anopheles ii) Aedes iii) Housefly iv) Virus

4. Rust of wheat is caused by:

i) Bacteria ii) Virus iii) Fungi iv) Protozoa

5. Which of the following can result in spread of microbes:

i) Air ii) Water iii) Food iv) All of these

6. The term vaccine was introduced by which scientist?

i) Edward Jenner ii) Robert Hooke iii) Alexander Flemming iv) Robert Koch

7. Chlorophyll is present in which of the following organisms

i) Bacteria ii) Virus iii) Algae iv) Protozoa

8. Yeast is used in the production of:

i) Hydrochloric acid ii) Alcohol iii) Sugar iv) Oxygen

[6]

9. Which of the following does not contribute to nitrogen availability in the soil?

i) Decay of organic matter ii) Lightning iii) Rhizobium iv) Lactobacillus

Q3. Give the contributions of the following:

A. Louis Pasteur

B. Alexander Fleming

C. Robert Koch

TWO MARTKS QUESTIONS

1. Explain how does blue green alga help in increasing the fertility of soil.

2. Name the insects, which carry the parasite of malaria and dengue?

3. What is to be called as preservatives?

4. Define pasteurization?

5. Why generally dry fruits and even vegetables are sold in sealed air tight packets?

6. What are the causes of food poisoning?

7. What do you mean by fermentation?

8. What are communicable diseases? Name some of them.

9. What are the major groups of microorganisms?

10. Name the microorganisms which can fix atmospheric nitrogen In the soil

11. Write 10 Items on the usefulness of microorganisms in our lives.

12. Write a short paragraph on the harms caused by microorganisms.

13. What are antibiotics? What precautions must be taken while taking antibiotics?

14. Mention the causative organism and mode of transmission of these organisms in the

following diseases.

(i) Tuberculosis

(ii) Polio

1

APRIL2018

CLASS: VIII

SUBJECT: SOCIAL SCIENCE

TOPIC: RESOURCES

HOW, WHEN AND WHERE.

FROM TRADE TO TERRITORY

THE INDIAN CONSTITUTION

Q1 What is a resource? Mention any two different type of resources.

Q2 Define sustainable development? What are the different principles of sustainable

development?

Q3 What are human made resources? Give few examples.

Q4 Differentiate between Ubiquitous and Localized resources.

Q5Why did the British conduct surveys in India? Name any two surveys conducted.

Q6What according to James Mills was the level of civilization of Asian societies?

Q7What was the significance of the charter that the East India Company acquired?

Q8What did the British do to preserve important documents?

Q9Who introduced the Subsidiary Alliance? What were its main features?

Q10Based on battle of Plassey, answer the followings:

a) Year and Place----------------------

b) The two parties--------------------

c) List any two reasons-------------------------

d) Name the traitor------------------------------

Q11The Constitution prevents tyranny of majority in a democratic society. Discuss it with a

suitable example

Q12 Was the term secular always part of Indian Preamble? What do you understand by

“Secular State”?

Q13 On the political map of India mark the followings:

i) Places annexed on account of Subsidiary Alliance.

ii)Places annexed on account of Doctrine of Lapse.

Enrichment Question

Q14 Know your constitution

a) The Indian Constitution came into being on ----------------------------------------

b) Time Period for passing it: -----------------------------------------

2

c) Indian constitution is the longest written constitution. It contains ------ articles, ----------

schedules and -------------amendments.

d) Father of Indian Constitution----------------------------------

ASSIGNMENT: MAY-2018

CLASS: VIII

SUBJECT: SOCIAL SCIENCE

TOPIC: LAND, SOIL, WATER, NATURAL VEGETATION AND WILDLIFE

RULING THE COUNTRYSIDE

UNDERSTANDING SECULARISM

Q1 List the factors which are responsible for uneven distribution of population.

Q2 What are the major threats due to expansion of agriculture and construction activities?

Q3 Where are landslides common? What are the causes of a landslide?

Q4 What are the main factors responsible for deterioration of quality and quantity of water

resource?

Q6 Complete the table

PERMANENT

SETTLEMENT

MAHALWARI

SETTLEMENT

RYOTWARI

SETTLEMENT

WHEN

WHERE

WHO

MERITS

DEMERITS

Q7 Match the following:

A. Vats 1.Champaran Movement

B. Gandhi 2. Indigo Plantation

C. Mahal 3. Land Measurement

D. Bigha 4. Village/Group of Villages

E. 1770 5. Diwani Rights

F. 1765 6. Famine in Bengal

Q8 In February 2004, which country has prohibited the wearing of conspicuous religious or

political signs by the students?

Q9 Which Constitutional amendment prohibits the U.S legislature from making the laws in

respect of religion?

Q10 What is “Pledge of Allegiance‟?

Q11“The Indian state works in various ways to prevent the domination of one religious

community.” Justify.

Q12 How can you differentiate Indian Secularism from the rest of the world?

ASSIGNMENT

CLASS 8TH

APRIL

About Networking Subtopics:

Network and its advantages

Type of networks and their architecture

Accessing file on another computer through Windows 10 network

A. Answer the following questions

1. What is computer network?

2. What is internet sharing? Explain with the help of examples/

3. Why is password displayed as a series of asterisks (*)?

4. How can we access files on other computers in a network?

5. What is the role of server in client server model?

6. How wireless connections are formed?

7. What is a password and why is it necessary?

Wireless and cloud technologies

Subtopics:

GPS, GPS receiver and its uses

3G and 4G technologies

Infra-red, Bluetooth

Wi-Fi and WiMAX technologies

Cloud Computing & Cloud storage

Advantages of cloud computing

A. Answer the following questions

1. Write the full forms of following:

a. Wi-Fi

b. WiMAX

c. GPS

d. GPRS

e. 4G

2. Name five devices which use Bluetooth technology.

3. What is hotspot?

4. Write four uses of Bluetooth technology.

5. WiMAX is a technology for long range wireless networking. Give reason to justify

this statement.

6. With GPS device in your hand you are never lost. How can you explain this

statement?

7. Which type of network is used to connect railway stations of different countries?

8. Discuss some advantages of cloud computing.

9. What do you understand by cloud storage?

MAY-JULY

Microsoft office access 2016

Subtopics

Microsoft Office Access, its object

Different views in Access

Defining the Primary key in the Table

Working with Tables in Datasheet and Design view

Setting Field properties in Design view

A. Answer the following questions

1. What is primary key?

2. Raj has created a table, but now he wants to change its structure in datasheet view?

Where is he going wrong?

3. What is database? Why is it required?

4. What is data redundancy?

5. How can data inconsistency be controlled using a database? Give an example.

6. What are templates?

7. What is datatypes? Name any four datatypes.

B. One sentence answers

1. Data redundancy

2. Data inconsistency

3. Data integrity

4. Logical data

5. Auto Number