Download HOLIDAYS HOMEWORK (ENGLISH) CLASS

HOLIDAYS HOMEWORK
(ENGLISH)
CLASS-X
1. Read, cut and paste 20 newspaper reports containing 200 words each and
do the followinga) Paste the articles in a scrap book
b) Underline the difficult words.
c) Find and write down their meanings.
d) Use the difficult words in sentences of your own.
2. Read the novel ‘THE STORY OF MY LIFE’ written by Helen Keller. After
having read the text attempt the following questions in your respective
notebooksa) Write your review about the book in an elaborate manner.
b) Write the plot in about 50 words
c) Describe of the Characters in about 50 words
3. Read any book of your choice by Enid Blyton.
a) Write the character sketch of two main Characters of the book
b) Make an attractive book jacket for the same
c) Write in points about the features of the book you found best
Class X BIO
Que.1 A worker in a factory of alchohal added Yeast to grape juice and left it in a
closed vessel for fermentation .After sometime he observed bubbles formation on
the surface of juice.How are the bubbles formed ?
Que.2 Dangerous substances like acids are produced in our stomach.Why does
not it causes injury in the stomach?
Que.3 Excretion is the elimination of waste products and other toxic material
from the body through various metabolic process. How is the regulation of water
level in the body related with excretion?
Oue.4 State the function of the following components of transport system:
1 Blood Lymph
Que.5 Draw structure of a nephron and label it.
What happens to glucose that enters the nephron along with filterate?
Que.6 State two vital functions of kidney.
Que.7 What is translocation?How it takes place in plants?
Que.8 Why plants appeare green in colour?
Que.9 With the help of a diagram explain how exchange of gases occurs in leaf
of a plant.
Que.10 What is blood pressure?What is its value in a healthy person?Name the
instrument used to measure it?
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PHYSICS
Q.1
An electric heater is used on 220V supply and takes a current of 3.4 A.
Calculate
(a) Its power and,
(b) Its resistance, when it is in use.
Q.2
Which consumes more energy a 250W TV set in 1 hour or 1200W toaster in
10 minutes?
Q.3
The length of wire is doubled. How is its resistivity affected?
Q.4
Two wires of equal lengths, one of copper and other of manganin (an alloy)
have the same thickness. Which one can be used for electrical heating
devices? Why?
Q.5
What is the highest and lowest total resistance that can be secured by
combination of three coils of resistance 2Ω, 3Ω and 5Ω?
Q.6
An electric iron of resistance 10Ω takes a current of 15 A. Calculate the heat
developed in 2 minutes.
Q.7
(a) What is the shape of the graph obtained by plotting potential difference
applied across a conductor against the current flowing through it?
(b) What does the slope of this V-I graph at any point represent?
Q.8
A wire is 2.0m long, 0.2 mm in diameter and a resistance of 10ohm.
Calculate its resistivity of its material.
Q.9
What is SI unit and commercial unit of electrical energy? Give relation
between them.
Q.10 An electric lamp is marked 20W, 220V. It is used for 10 hours daily.
Calculate
(a) its resistance while glowing,
(b) No. of units consumed every day
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HOLIDAYS HOMEWORK (CHEM) Class – 10th
1. Balance the following chemical equations:
(i)
Cu + HNO₃ → Cu(NO₃)₂ + NO + H₂O
(ii)
Zn + H₂SO₄ → ZnSO₄ + SO₂ + H₂O
2. Translate the following statement into balanced chemical equation:
(i)
Ferrous sulphate on heating gives sulphur dioxide, sulphur trioxide, ferric oxide and
water.
(ii)
When dilute hydrochloric acid is added to magnesium carbonate, we get magnesium
chloride and water with the evolution of carbon dioxide gas.
3. Select combination reaction, decomposition reaction and displacement reaction from
the following chemical reaction:
(i)
C + O₂ → CO₂
(ii)
NaBr + AgNO₃ → AgBr + NaNO₃
(iii)
CaCO₃ → CaO + CO₂
(iv)
H₂S + Cl₂ → 2HCl + S
4. Name the substances oxidized and reduced, and also identify the oxidizing agents and
reducing agents in the following redox reaction:
(i)
Ca + Cl₂ → CaCl₂
(ii)
3MnO₂ +4Al → 3Mn + 2Al₂O₃
(iii)
Fe₂O₃ + 3CO → 2Fe + 3CO₂
5. Magnesium is more reactive than copper or iron and iron is more reactive than copper.
(i)
A solution of magnesium sulphate is put into copper pot.
(ii)
A solution of ferrous sulphate is put into copper vessel.
(iii)
A solution of copper sulphate is put into iron pot.
(iv)
A solution of magnesium sulphate is put into iron pot
In which of the above, pots get damaged and why? What is the reaction called?
6.
(a)
(b)
(c)
(d)
Which of the following process does not produce decomposition reaction?
Electrolysis
Exposure to light
Distillation
Thermal
7. Which of the following statements about the reaction below are incorrect?
2H₂S + SO₂ → 3S + 2H₂O
(i)
H₂S is getting oxidized.
(ii)
SO₂ is getting oxidized.
(iii)
H₂S is reducing agent.
(iv)
(a)
(b)
(c)
(d)
SO₂ is oxidizing agent.
(i) and (iii)
(i) and (iv)
(i) and (ii)
(iii) and (iv)
8. Which of the following processes involve chemical reaction?
(i)
Storing copper sulphate solution in iron vessels.
(ii)
Dissolution of salt in water.
(iii)
Heating magnesium wire in air.
(iv)
Heating of camphor in a china dish.
(a)
(b)
(c)
(d)
(i) and (ii)
(i) and (iii)
(ii) and (iii)
(ii) and (iv)
9. Match the following:
(i)
Balanced chemical equation
(ii)
KClO₃ → KCl + O₂
(iii)
Process of balancing a Chem. Eq
(iv)
Evolution of heat
(v)
Time to completion
10. Match the following:
(i)
Heating of ferrous sulphate
(ii)
Double displacement reaction
(iii)
Dissolution of lime in water
(iv)
Decomposition reaction
(v)
Displacement reaction
(a) Hit & trial method
(b) Exothermic change
(c) Drawback of a Chem. Eq.
(d) Skeleton Equation
(e) Conservation of mass
(a) Exothermic change
(b) Endothermic reaction
(c) Oxidation reaction
(d) Reddish brown residue
(e) Insoluble product
Q 1:
SUMMER HOLIDAYS HOMEWORK
CLASS – X SUBJECT MATHS
Crossword Puzzle worksheet
Learning objectives: To test the basic concepts related to the chapter (Real Numbers).
Across
4.
Fundamental
theorem
of
..…..…..…………………
states that every composite number can
be uniquely expressed as a product of primes,
apart
from the order of factors.
7.
The ………………..……………….. factorization
of composite number is unique.
10.
…………………………….. numbers have either
terminating or non-terminating repeating decimal
expansion.
Down
1.
…..……………….. is a sequence of well defined
steps to solve any problem.
2.
Numbers
having
non-terminating
non-repeating
decimal expansion are known as …………………
3.
A proven statement used as a stepping stone towards the proof of another
statement
is
known as ………………………………..
5.
Decimal expansion of 3/35 is …..………………..…………
6.
The …………………….. expansion of rational numbers is terminating if the
denominator
has 2 and 5 as its only factors.
8.
………….………….. division algorithm is used to find the HCF of two positive
numbers.
9.
For any two numbers, H.C.F. x L.C.M. = …………………….. of numbers.
Q 2:
Quiz / Oral Assessment
1. The sequence of well defined steps to solve any problem is known as
………………………..
2. Numbers having non-terminating, non-repeating decimal expansion are known as
……………
3. A proven statement used as a stepping stone towards the proof of another statement is
known as …………………………….
4. Fundamental theorem of Arithmetic states ………………………………….
5. Decimal expansion of 1/35 is ………………………………..
6. What are the probable factors of the denominator of rational number having
terminating decimal expansion?
7. The prime factorization of composite numbers is …………………………………
8. Name the algorithm which is used to find the H.C.F. of two positive numbers.
9. For any two numbers, H.C.F. x L.C.M. = …………………..……… of numbers.
Q3
Questions
1. There is a circular path around a sports field. Preeti takes 18 minutes to drive one
round of the field, while Suman takes 12 minutes for the same. Suppose they both
start at the same point and at the same time, and go in the same direction. After how
many minutes will they meet again at the starting point?
2. Two tankers contain 616 litres and 32 litres of petrol respectively. Find the maximum
capacity of container which can measure the petrol of either tanker in exact number of
times.
3. Find the HCF of 12576 and 4052.
4. Find HCF of 867 and 255.
Q4
Multiple Choice Questions
Choose the correct option:
1. 5 – 3 – 2 is:
a) a rational number
b)
a natural number
c) equal to zero
d)
an irrational number
2. If (m)n – 32, where m and n are positive integers, then the value of (n) mn is:
a) 32
b)
25
c) (5)10
d)
(5)25
3. If p is a prime number and p divided k2, then p divides:
a) 2k2
b)
k
c) 3k
d)
None of these
4. Any one of the numbers a, (a+2) and (a+4) is a multiple of:
a) 2
b)
3
c) 5
d)
7
𝑝
5. The number 0.57 in the 𝑞 from (q≠0) is:
a)
c)
Q5
19
35
57
95
b)
d)
57
99
19
30
Multiple Choice Questions
1. The degree of the polynomial whose graph is given below is:
a) A
b)
2
c) ≥3
d)
cannot be found
2. If the sum of the zeroes of the quadratic polynomial 3x2-kx+6 is 3, the value of k is:
a) 3
b)
-3
c) 9
d)
9
3. The quadratic polynomial, whose sum and product of zeroes are 1 and -12
respectively is:
a) x2-x-12
b)
x2-x-12
c) x2-12 + 1
d)
x2-12x-1
4. The quadratic polynomial, the sum and product of zeroes are – 3 and 2, is:
Q6
a) x2+3x-2
b)
x2+3x+2
c) x2+3x+2
d)
x2-3x+2
Questions
1. If P(x) = 3x3-2x3 + 6x -5, find P(2)
2. Find a quadratic polynomial, whose sum and product of zeroes are 2 and 3
respectively.
3. If m and n are zeroes of the polynomial 3x2 + 11x – 4, find the value of
Q7
𝑚
𝑛
𝑛
+𝑚
Questions
1. Without actual division find whether the rational number
1323
63 𝑥35 2
+ ⋯ has a
terminating or a non-terminating decimal.
2. If L.C.M. (480, 672) = 3360, find H.C.F. (480, 672).
3. Prove that 7 – 5 is an irrational number.
Q8
Given below is a graph representing pair of linear equations in two variables x-y=2,
x+y=4.
1. What are the coordinates of points where two
lines representing the given equations meet xaxis?
2. What are the coordinates of points where two
lines representing the given equations meet yaxis?
3. What is the solution of given pair of equations?
Read from graph.
4. What is the area of triangle formed by given
lines and x-axis?
5. What is the area of triangle formed by given
linens and y-axis?
Q9
S.
N
o.
1.
Explore the Graphs
Graph of y = f(x)
Graph of a linear
polynomial
2.
Graph of a
quadratic
polynomial
3.
Graph of a
quadratic
polynomial
4.
Graph of a
quadratic
polynomial
Number of
Zeroes
Zeroes
5.
Graph of a cubic
polynomial
Q10
Zeroes and Coefficients
Learning objectives: To verify the relationship between zeroes and coefficients of a
polynomial.
Chapter Polynomials: ax2 + bx + c, a ≠ 0, a, b, c are real numbers of a quadratic
polynomial
Sum of zeroes = - coefficient of x/coefficient of x2
Product of zeroes = constant term / coefficient of x2
Quadratic
Polynomials
1. x2 + 7x + 10
2. x2 – 3x – 28
Factorization by
Splitting the middle
term
Zeroes
Verification
3. 3x2 – x – 4
Q11
Solve the questions
1. Solve the following pair of linear equations graphically.
2x + 3y = 12 and x – y = 1
2. The age of the father is twice the sum of the ages of his 2 children. After 20 year, his
age will be equal to the sum of the ages of his children. Find the age of the father.
3. Solve the following pair of linear equations graphically:
x + 3y = 6, 2x – 3y = 1
HOLIDAY HOME-WORK
SOCIAL SCIENCE
CLASS X
History (FA – 2)
1) Prepare a p*roject on “The early entrepreneurs in india” (in about 10 pages) highlighting the
following pointsa) Early Entrepreneurs
b) Sources of Capital
c) Workers – Where did they come from
d) Main industries/Commercial establishments
e) Major large scale Industrial Centres. (Also on MAP).
2) Collect information on womenwriters in Europe and India in 18th and 19th century.
Support your answer with pictures, photos and press cuttings.
Geography (FA – 2)
3) Prepare a table on Food Crops covering the following column headsa) Serial number
b) Name of crop
c) Season in which it is grown
d) Climatic conditions
e) Areas where these crops are grown
4) On the outline maps of India, make and name the following featuresa) Soils in India
b) Distribution of wheat, rice, tea, coffee, sugarcane and cotton
c) Major rivers if India
Civics
5) Write a detail note on any one of the pressure group actively working in Delhi and other parts of
India covering the following pointsa) Leader’s name
b) Main objectives
c) Methods adopted by them to achieve goals
d) Government/Common man response
Economics
6) Find out BMI (Body Mass index) for your family members and yourself and
write a note on it highlighting the following pointsa) How many members are healthy, over weight and underweight
b) Consequences of Underweight/Overweight
c) Conclusion
Note – Dear students learn/memorize all the work you have done in the notebooks
of Social Science.
Do FA-2 (Formative Assignments) in folders and rest of the work in Social
Science registers. Beside projects answer the following question and
answers and read the chapters.
History – Read chapter-5 “The age of Industrialization” and answer the question
given at the back of the chapters in the exercise.
Geography – Read chapter-2 “Water resources” and do the question and answers
given in exercise of the chapter.
Civics –Read chapter 1 “Power sharing”. Mark Democratic countries and show them
in yellow color on World map.
Economics –Write a note on the new features (developments) you see around in
Delhi now. How do you feel as a Delhiite?
Computer
Class – X
Holiday Home Work
Q1. Prepare a project file on the following topics:
 Various types of protocols

Advantages of internet in different fields.
 detailed study of web browsers
 Artificial Intelligence
Q2. Make a Power Point presentation in a CD on any one of the following
topics:
1.Robotics
2. Social Networking Websites