WEEKLY ASSIGNMENT · Complete the following assignment questions Q1.What are the main groups of...

Month- June Week – 4

Class- VII Subject- English

Complete the following assignment questions

Subject- English Question and Answers..

The Think about it (question and answers)

1. The Tiny Teacher

2. The Desert

WEEKLY ASSIGNMENT


Class- VII Subject- Marathi


WEEKLY ASSIGNMENT


Class- VII Subject- Maths


1. (–15) ÷ (– 3) = 2. (–21) ÷ 7 = 3. 36 ÷ (- 6) =

4. Evaluate (– 14) ÷ (– 7) ≠ (– 7) ÷ (– 14)

5. Evaluate [(– 8) + 4)] ÷ [(–5) + 1]. 6. Divide -85 by 5

7. (-15) × 8 = 8. (-25) × (-9) =

9. (-45) × 55 × (-10) =

10. 28945 × 99 - (-28945)

11. Find the value of : 1487 × 327 + (-487) × 327

12. What will be the sign of the product if we multiply together;

1. 8 negative integers and 1 positive integer?

2. 21 negative integers and 3 positive integers?

13. (-11) – (-3) – (-4) – (-5) = _____

14. (–7) + 4 + (–1) + (–6) = ______

15. Which of the following shows the maximum rise in temperature?

(a) 23° to 32° (b) -10°to 1°

(c) -18° to-11° (d) -5° to 5° _______________________________________________________

WEEKLY ASSIGNMENT


Class- VII Subject- Physics

Complete the following assignment questions Q1.Define: Temperature Q2. Why do we need heat energy? Q3. Name a device which is used to measure human body temperature. Q4.What precautions are to be taken while handling clinical thermometer? Q5.What is the normal temperature of a human body?

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Class- VII Subject- Chemistry

Complete the following assignment questions Q1 What happens, when carbon dioxide gas is passed through lime water? Write a word equation for this process. Q2 When a candle burns both physical and chemical changes takes place.Identify these changes. Q3 Explain why burning of wood and cutting of cutting of wood into small pieces are considered as two different types of changes --------------------------------------------------------------------------------

WEEKLY ASSIGNMENT


Class- VII Subject- Biology

Complete the following assignment questions Q1.Define: Nutrition. Q2. What is symbiotic relationship? Q3. Give the uses of salivary glands. Q4.Name the different parts of human alimentary canal. Q5.What do you mean by peristaltic movement?

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WEEKLY ASSIGNMENT


Class- VII Subject- History

Complete the following assignment questions Q.1What were the central provinces under the control of the Mughals. Q.2 Why did the Mughals emphasis their Timurid and not their Mongol descent? Q.3 Write a short notes on Akbar’s policies. Q.4 List the Mughal Emperors from 1526 to 1707.

WEEKLY ASSIGNMENT


Class- VII Subject- Geography

Complete the following assignment questions Q1-) Make a chart as per the following vertical columns. a) Agent. b) Erosional landforms c) Depositional landforms For Running water , work of sea waves , work of ice and work of wind. Q2-) What is an earthquake? What are the effects? Where to take shelter during an earthquake? (Ref.-- page 14,-- case study)

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Class- VIII Subject- English


Lesson 2 Children at Work Comprehension Check- ,13,15 Working with the text Page 30,31 Lesson 2. Difficult words with meanings Poem Geography Lesson Difficult words with meanings Working with the poem Page 35

WEEKLY ASSIGNMENT


Class- VIII Subject- Marathi


WEEKLY ASSIGNMENT


Class- VIII Subject- Maths


1. 2. 3. 4. 5.

6.

7.

8.

9.

10.

11.

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Class- VIII Subject- Physics

Complete the following assignment questions Q.1 Define: Atmosphere

Q.2 Define: Atmospheric pressure

Q.3 Why are we do not get crushed under the atmospheric pressure?

Q.4 How will you prove that a liquid exerts pressure?

Q.5 How will you prove that the gases exert pressure?

WEEKLY ASSIGNMENT


Class- VIII Subject- Chemistry

Complete the following assignment questions Q1 Write the uses of metals and nonmetals. Q2 What is displacement reaction? Explain with suitable example. Q3 Name one metal and one non-metal which occurs in liquid state at room temperature. Q4 Aluminium foils are used to wrap food items .Explain why? -------------------------------------------------------------

WEEKLY ASSIGNMENT


Class- VIII Subject- Biology

Complete the following assignment questions Q1.What are the main groups of microorganisms. Q2. Name the bacteria which are used in the formation of curd. Q3. Why microorganisms are called our friends? Q4.Define: Microrganisms. Q5.Which one of the following microorganisms is used in the manufacture of alcohol. a)Bacteria b)Yeast c)Algae d) None of the above

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WEEKLY ASSIGNMENT


Class- VIII Subject- History

Complete the following assignment questions Q.1 What problems did shifting cultivators face under the british rule. Q.2 How did tribal people live. Q.3 How did colonial rule affect tribal people. Q.4 Write a short notes on the Birsa Munda and his vision of a golden age.

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WEEKLY ASSIGNMENT


Class- VIII Subject- Geography

Complete the following assignment questions Q1-) which are the two types of power resources? Explain with suitable examples. Q2-) How coal is formed? Which are the four types on the basis of carbon content? Why is it called ' Burried sunshine’? Name the leading countries in the world. Q-3-) Which are the three types of energy/electricity? Define each of them.

WEEKLY ASSIGNMENT


Class- IX Subject- English

Complete the following assignment questions Reader Lesson 2 Wind Thinking about the poem Page 31 Thinking about Language- Page 26 27 Supplimentary Reader Lesson 2. Difficult words with meanings S Reader Lesson 2. Adventures of Toto Exercise Page 11 Lesson 2. Difficult words with meanings

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Class- IX Subject- Marathi


WEEKLY ASSIGNMENT


Class- IX Subject- Maths

Complete the following assignment questions 1.

2.

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Class- IX Subject- Physics

Complete the following assignment questions Q.1 Define: Average speed

Q.2 Define: Uniform speed

Q.3 A body travels 20m in 7s and then another 25m in 6s, what is the average speed of

a body?

Q.4 What do the following measure in a car?

a) Speedometer

b) Odometer

Q.5 Change the speed of 6m/s into km/h.

WEEKLY ASSIGNMENT


Class- IX Subject- Chemistry

Complete the following assignment questions Q1 Why does a desert cooler cool better on a hot dry day? Q2 Why does our Palm feel cold when we put some Acetone or petrol or perfume on it? Q 3 What type of clothes should we wear in summer? Q4 What produces more severe burns boiling water or steam? Why? Q5 A gas exert pressure on the walls of container. Explain why? Q6 A diver is able to cut through water in a swimming pool which property of matter does this observation show? -------------------------------------------------------------------------------------------------------------

WEEKLY ASSIGNMENT


Class- IX Subject- Biology

Complete the following assignment questions Q.1 Name the cell organelles which have their own DNA.

Q.2 Why lysosomes are called suicide bags?

Q.3 Give any two functions of vacuole.

Q.4 What are the full forms of SER and RER?

Q.5 Draw a labeled diagram of plant cell.

Q.6 Which of the following is not a membrane bound cell organelle? a) Mitochondria b) Lysosomes c) Ribosome d) Golgi apparatus Q.7 Mitochondria produce.. a) Lipids in a cell b) Fats in a cell c) ATPs in a cell d) Both b and c

WEEKLY ASSIGNMENT


Class- IX Subject- History

Complete the following assignment questions Q.1 Describe what happen to Germany after its defeat in the First World War. Q.2 Describe any three inherent defects in the Weimer constitution/Republic. Q.3 Give reasons for Hitler’s rise to the power. Q.4 Explain any five features of political policy adapted by Hitler after coming to the

power in 1933.

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WEEKLY ASSIGNMENT


Class- IX Subject- Geography


1. Map skills- On an outline map of India mark the following. (Please use 5

outline maps of India).

Pamir Knot Kailash Range Karakoram Range

Ladakh Range Vindhya Ranges Satpura Ranges

Mount Anai Mudi Mount Everest Kanchanjunga

Nathula Pass Shipkila Pass Jojila Pass

Western Ghats Eastern Ghats Aravalli Ranges

Malwa plateau Bundelkhand Bhaghelkahand

Deccan Plateau Central highland Thar Desert

Nilgiri Hills Puvanchals Annapurna peak

Namcha Barwa Peak Manasarovar lake Shiwalis

Kunlun Mountain Hindu kush Moutain Range

Rann Of Kachchh Nanga Parbat Peak Bum de la Pass

2. Draw fig 2.1 (textbook page 7).

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WEEKLY ASSIGNMENT


Class- X Subject- English

Complete the following assignment questions The Triumph of surgery. Think about it (Question and Answers)

WEEKLY ASSIGNMENT


Class- X Subject- Marathi


WEEKLY ASSIGNMENT


Class- X Subject- Maths


WEEKLY ASSIGNMENT


Class- X Subject- Physics

Complete the following assignment questions Q.1 Define: Wind

Q.2 Explain the working of hydroelectric power plant with the help of a neat diagram.

Q.3 Write any two demerits of hydroelectric power plant.

Q.4 What do you mean by a wind energy farm?

Q.5 Write any two merits of wind energy.

WEEKLY ASSIGNMENT


Class- X Subject- Chemistry

Complete the following assignment questions Q1 Tooth enamel is one of the hardest substances in our body .How does it undergo damage due to eating chocolates and sweet? How do toothpastes prevent this damage ? Q 2 What are strong and weak acids? In the following list of acids separate strong acids from weak acids hydrochloric acid, citric acid, acetic acid ,nitric acid, formic acid sulphuric acid . Q3 Name the plant from which Litmus solution is extracted. Q4Name the acids present in vinegar ---------------------------------------------------------------------------------------------------------

WEEKLY ASSIGNMENT


Class- X Subject- Biology

Complete the following assignment questions Q.1 What is respiration?

Q.2 How fat is digested in human body? Explain.

Q.3 What are salivary glands? What are their functions?

Q.4 Draw a labeled diagram of human digestive system.

Q.5 Differentiate between small intestine and large intestine.

Q.6 In which of the following part of alimentary canal, the digestion

of fats occurs?

a)Buccal cavity b)Mouth c)Large intestine d)Small intestine

Q.7 Which of the following blood vessel have valves?

a)Artery b)Vein c) Both a and b d) None of these

WEEKLY ASSIGNMENT


Class- X Subject- History

Complete the following assignment questions Q.1Write a short notes on a) Giuseppe Mazzini . b) Garibaldi. Q.2 .Briefly trace the process of the German unification. Q.3. Briefly trace the process of the Italian unification. Q.4.How did the united kingdom of Great Britain come into existance?

WEEKLY ASSIGNMENT


Class- X Subject- Geography

Complete the following assignment questions 1. Define the following terms.

Flora and Fauna Biodiversity Normal Species

Endangered Species Endemic Species Extinct Species

Vulnerable Species Rear Species Vanishing Forests

Biosphere Reserves Reserved Forests Protected Forests

Unclassed Forests Colonial Period National Parks

Wildlife Sanctuary Bird Sanctuary Project Tiger

Chipko Movement Beej Bachao Andolan JFM

2. Which Values are associated with afforestation? Mention any five.

3. Distinguish between Endangered species and Extinct Species.

4. Write a short note on Asiatic Cheetah and Himalayan Yew.

5. Explain the Indian Wildlife protection What act, 1972 and its objectives.

6. Describe the steps taken to conserve the flora and fauna of the country.

7. What are the main causes of deforestation in India?

8. Why is biodiversity important for human lives?

9. How many National parks and wildlife sanctuaries are there in India?

10. Map skills. Mark 10 National Parks and 10 wildlife Sanctuaries on an outline

map of India.

11. Please note- Complete textbook Exercises accordingly.

WEEKLY ASSIGNMENT


Class- XI Subject- English

Complete the following assignment questions What difference did you notice between the reaction of the adults and the children when faced with danger? 2. How does the story suggest that optimism helps to endure “the direst stress"? 3. What lessons do we learn from such hazardous experiences when we are face-to-face with death ? 4. Why do you think people undertake such adventurous expeditions in spite of the risks involved?

WEEKLY ASSIGNMENT


Class- XI Subject- Maths

Complete the following assignment questions Ch.3. Trigonometric Functions ASSIGNMENT -1

1. Find the radian measure corresponding to each of the following degree

measures. (i) 150 (ii) 4200 (iii) 5037’30’’ (iv) – 22030’

2. Find the degree measure corresponding to each of the following radian

measures.

(i) – 2 radians (ii) 14

radians (iii) 52 (iv) 17

9

3. The angles of a quadrilateral are in A. P. and the greatest angle is 1200.

Express all the angles in radians.

4. Prove that 8 8 2 2 2 2sin cos sin cos 1 2sin cos .

5. If sin cos,sin cos

A Am nB B , prove that

2

2

1tan1

m nAn m

.

6. If tan 2 and lies in the second quadrant, find the values of other

trigonometric ratios.

7. If sec 2 , 3 22 , find the value of 1 tan cos

1 cot cosecec

.

8. Find the values of :

(i) 0cos150 (ii) 0cos 150ec (iii) 0sin 315 (iv) 0cot120 (v) 0tan 585

(vi) 0cos 1410ec (vii) 11cos

4ec

(viii) 5sin3

9. Simplify:

0 0

0 0 0

cos 90 sec tan 180

sec 360 sin 180 cot 90

.

WEEKLY ASSIGNMENT


Class- XI Subject- Physics


1. Derive v = u + at using graphical method and calculus

method.

2. Derive S = ut + ½ a(t)2 using graphical method and calculus

method.

3. Derive (v)2 – (u)2 = 2as using graphical method and calculus

method.

WEEKLY ASSIGNMENT


Class- XI Subject- Chemistry

Complete the following assignment questions Q.1 (a) What is ‘stock notation’? (b) Represent the formulae of the following compounds using stock notation: (i) Al2O3 (ii) Na2O (iii) AlCl3 (iv) ZnO (v) Fe2O3 (vi) Fe2(SO4)3 Q.2 Explain the following redox reactions with one example each:

(a) Combination reaction (b) Decomposition reaction (c) Displacement reaction (d) Disproportionation reaction

Q.3 Identify Oxidation and reduction half reactions in terms of increase/decrease in oxidation numbers :

(a) H2S + Br2 2HBr + S

(b) Cl2 + 2 Br - 2Cl - + Br2

(c) Zn + 2HCl ZnCl2 + H2

(d) Fe + H2SO4 FeSO4 + H2

Q.4 Which of the following species do not show disproportionation reaction & Why?

ClO - , ClO2-, ClO3

-, ClO4-

Also write the reaction for each of the above species that disproportionate.

Q.5 Justify that the reaction

I2 + 2 S2O3 2- 2I- + S4O6 2-

Is a redox reaction. Identify the species oxidized and reduced. Also fond the oxidizing and reducing agents.

WEEKLY ASSIGNMENT


Class- XI Subject- Biology

Complete the following assignment questions Question 1: What is the basis of classification of algae? Question 2: When and where does reduction division take place in the life cycle of a liverwort, a

moss, a fern, a gymnosperm and an angiosperm? Question 3: Name three groups of plants that bear archegonia. Briefly describe the life cycle of any

one of them. Question 4: Mention the ploidy of the following: protonemal cell of a moss; primary endosperm

nucleus in dicot, leaf cell of a moss; prothallus cell of a fern; gemma cell in Marchantia; meristem cell of monocot, ovum of a liverwort, and zygote of a fern. Question 5: Write a note on economic importance of algae and gymnosperms. Question 6: Both gymnosperms and angiosperms bear seeds, then why are they classified

separately? Question 7: What is heterospory? Briefly comment on its significance. Give two examples. Question 8: Explain briefly the following terms with suitable examples:-

(i) protonema (ii) antheridium (iii) archegonium (iv) diplontic (v) sporophyll (vi) isogamy Question 9: Differentiate between the following:-

(i) red algae and brown algae (ii) liverworts and moss (iii) homosporous and heterosporous pteridophyte (iv) syngamy and triple fusion Question 10: How would you distinguish monocots from dicots? Question 11: Describe the important characteristics of gymnosperms.

WEEKLY ASSIGNMENT


Class- XI Subject- Computer


1. Draw truth table of and or not operators

2. Draw diagrams of And OR NOT GATES

3. Explain principal of dualitu.

WEEKLY ASSIGNMENT


Class- XII Subject- English

Complete the following assignment questions Q.1-How does the peddler interpret the acts of kindness and hospitality shown by the crofter, the ironmaster and his daughter? Q2- What are the instances in the story that show that the character of the ironmaster is different from that of his daughter in many ways? Q3- The story has many instances of unexpected reactions from the characters to others’ behaviour. Pick out instances of these surprises? Q4- What made the peddler finally change his ways? Q5- How does the metaphor of the rattrap serve to highlight the human predicament? Q6- The peddler comes out as a person with a subtle sense of humour. How does this serve in lightening the seriousness of the theme of the story and also endear him to us?

WEEKLY ASSIGNMENT


Class- XII Subject- Maths

Complete the following assignment questions Ch.4. DETERMINANTS

1. Show that

2

2

2

11 ( )( )( ).1

a ab b a b b c c ac c

2. Show that 1 22 3 0,3 4

x x x ax x x bx x x c

if a, b, c are in A.P.

3. Using properties of determinants, prove that

3 3 3

3( ) 3 3( )( ).

3

( ) 3

a a b a ci a b b c b a b c ab bc ca

a c b c c

a b cii a b b c c a a b c abc

b c c a a b

4. Prove that: (i) 2 2 2( )( ).a b c c b

a c b c a a b c a b ca b a b c

(ii)

2 2

2 2 2 2 3

2 2

1 2 22 1 2 (1 ) .2 2 1

a b ab bab a b a a bb a a b

5. Find the equation of the line joining (1, 2) & (3, 6) using determinants.

6. Show that the points (a, 0), (0, b) & (1, 1) are collinear if .111

ba

WEEKLY ASSIGNMENT

7. Solve the following system of equations by using matrix method:

( ) 2 4 0; 3 5 7 0.( )5 3 16;2 3 19; 2 4 25.

2 3 10 4 6 5 6 9 20( ) 4; 1; 2.

i x y x yii x y z x y z x y z

iiix y z x y z x y z


Class- XII Subject- Physics

Complete the following assignment questions 1. Derive an expression for electric potential at a point due to a

point charge. 2. Derive an expression for electric potential at any point due to

an electric dipole. 3. Derive an expression for torque acting on electric dipole placed

in uniform electric field. 4. Derive an expression for electrostatic potential energy of

electric dipole placed in uniform electric field.

WEEKLY ASSIGNMENT


Class- XII Subject- Chemistry

Complete the following assignment questions Q.1 (a) What are colligative properties ? (b) Name the four colligative properties Q.2 (a) Derive the expression for relative lowering of vapour pressure. (b) The vapour pressure of 4% aqueous solution of a non-volatile solute X is 600

torr at 373 K. Calculate the molar mass of solute when the vapour pressure of pure water at 373 K is 760 torr.

Q.3 (a) Derive the expression for elevation of boiling point. (b) The boiling point of benzene is 353.52 K. when 1.80 gram of a non-volatile

solute is dissolved in 90 gram of benzene, the boiling point is raised to 354.11 K. calculate the molar mass of solute. ( Kf for benzene is 2.53 KKg/mol)

Q.4 (a) Derive the expression for depression of freezing point. (b) 15 gram of urea and 25 gram of dichloromethane are dissolved in water to make

100 gram of solution. Calculate the freezing point of a solution. (Kf for water is 1.86 KKg/mol)

Q.5 The vapour pressure of chloroform and dichloromethane at 298 K are 200 mm Hg

and 415 mm Hg respectively. (a) Calculate the vapour pressure of a solution prepared by mixing 20 gram of

chloroform and 50 gram of dichloromethane at 298 K (b) Calculate the mole fraction of both the components in vapour phase.

WEEKLY ASSIGNMENT


Class- XII Subject- Biology


ASSIGNMENT 4

CLASS-XII

1. Apomixis is form of asexual reproduction that mimics sexual reproduction in plants. Explain with suitable examples.

2. Some flowers selected for artificial hybridization don’t require emasculation but bagging is essential for them. Give a reason.

3. Draw a labelled diagram of a mature male gametophyte pf angiosperm. (hint-

pollen grain)

4. Pollen banks are playing important role in promoting plant breeding program the world over. How are pollens preserved in pollen banks?

5. Differentiate between geitonogamy and xenogamy. Write the difference in the

characteristics of the property produced as a result of the two process.

6. Where does the process of mega sporogenesis starts in an angiosperm? Describe the process of formation of embryo sac.

7. a) Explain the process of double fertilization in angiosperm.

b) Why does the development of endosperm precede that of embryo? c) List the part of typical dicot embryo.

8. Write the steps in sequence as carried in multiple ovulation embryo transfer technology.

9. How does a bisexual flowering plant ensure cross pollination? Explain.

10. Differentiate between monoecious and dioecious plants. Give one example of each.

WEEKLY ASSIGNMENT


Class- XII Subject- Computer


1. Write program for addition of two numbers using functions.

2. Define concept of user defined functions in python.

3. Write names of 5 readymade functions in python.

4. Explain concept of default parameters in Python function.

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WEEKLY ASSIGNMENT

WEEKLY ASSIGNMENT · Complete the following assignment questions Q1.What are the main groups of...

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