Class IX TO X

CLASS IX
English
A. Collect the pictures and informations from the life history of:
1.Robert Frost.
2. Bismillah Khan.
3. Any Indian great poet / musician.
B.Do the grammar assignments given.
SCIENCE
CHEMISTRY
Activity 1.11
Activity 1.11
ACTIVITY 1.12
PHYSICS
Learn all question from note book of chapter-motion
Do activity 8.9 and 8.10 of chapter motion from ncert book on
separate graph sheet.
CLASS 9 BIOLOGY
Q1
MAKE A MODEL OF
1. Neuron unit of nervous tissue
2. Plant cell
3. Animal cell
Activity any one
1. Generation of a seed
2. Growth of roots in onion bulbs
3. Osmosis
1. One example of prokaryotic cell and eukaryotic cell
2. Various cells from the human body
3. Section of a stem
4. Types of muscular fibers
5. Diagram of a neuron
Identify the type of tissue in the following
1. Skin
2. Bark of tree
3. Bone
Learn and write question and answer of the lesson
The fundamental unit of life
Q2
Q3
Q4
Q5
MATHEMATICS
1.
Find the value of i) { (81) -½ }]²
iv) 5 6 + 3
ii) (16/81) -¾
iii) ( 7 ¼ ) ³
x
2. Classify the following as rational or irrational with justification.
i) (5 +
iv) (
viii)
3.
)(5 +3)–(
)
ii) 6.412341234….
–5)
vi)
/
/
iii) 1.919919991….
vii) 0.326
ix)
x) -
xi) 2
4. If x2 = 18, then is ‘x’ a rational or irrational number?
5. State whether – 1 +
lies in the negative or positive side on the number line?
6. Rationalise the denominator:
7.
i)
ii)
iii)
iv)
v)
8. Insert a rational number between the following:
i) 6 and 7
ii)
iv) 1 and 1.1
v) 0.25 and 0.26
vii) 4.13692 and 4.4568
and 1/8
iii) 2/3 and 7/8
vi) 3.413 and 4.314
viii) √3 and √5
9. Find the zeroes of the following polynomials:
10. i) p(x) = 2x – 3
ii) q(x) = 5 – 9x
iv) f(t)= t2- 2t
iii) g(y) = 3y
(v) r(x) = (x – 2)2 + (x + 2)2
11. (vi) h(x) = cx + d,
c ≠ 0,
c,d are real numbers.
Write True or False
12. Every integer is a rational number.
13. Every rational number is an irrational number.
14. Every natural number is an integer.
15. Every integer is a natural number.
16. Every rational number is a real number.
17. Every real number is a rational number.
18. Every whole number is a natural number.
19. Every natural number is a whole number.
20. Every integer is a whole number.
21. Every rational number is a whole number.
Answer the following in one line.
22. What is a rational number?
23. What is an irrational number?
24. What type of decimal representation do rational numbers have?
25. Why do we calculate the approximate value of an irrational number?
26. State whether
is an irrational or a rational number.
27. Determine which of the following polynomials has x – 4 as a factor.
(i)
2 x2 – 7 x – 4
(ii) 2 x³ - 7 x2 – 39x + 60
(iii) x ⁴ - 13 x2 + 36
(iv) x ³ + 9x2 + 11x – 15
28. (i) If a + b + c = 9 and ab + bc + ca = 26, find a2 + b2 + c2.
(ii) If ab + bc + ca = 36 and a 2 + b2 + c2 = 85, find a + b + c.
29. (i) Find x2 + y2 if x + y = -14 and xy = 84.
30. (ii) Find y2 +
and y ⁴ +
if y – = 9.
31. Find the value of
(i) 8 x³ + y³ - 30 xy + 125, if 2x + y = - 5.
(ii) x³ - 27 y³ + 27 xy + 27, if x = 3y -3.
32. Evaluate the following using the suitable identity.
(ii) 10012
(i) 99³
(iv) 105 x 108
(iii) 105³
(v) 94 x 106
(vi) 107³
33. The polynomials p(x) = kx ³ + 9 x2 + 4x - 8 when divided by (x + 3) leaves a remainder 10 (1 – k).
Find the value of k.
34. What must be added to 2 x ³ - 4x + 9 to get 5x ³ - 13?
35. What must be substracted from 4 x 2 to get 6 x ³ - 2 x2 + 5x – 1 ?
36. Find the value of polynomial p(x) = 8x ³ - 6x 2 – 4x + 3 , when
37. (i) x =
(ii) x = -
38. Are the square roots of all positive integers irrational? Justify you answer.
39. For the polynomial 2 - x - 6x2 + 8x³, write: (i) the degree of the polynomial
40. (ii) the coefficient of x or y
(iii)
the constant terms
(iv) the number of terms
41. Find the remainder when x³ - 3x2 + 3x - 1 is divided by:
(i) x -
(ii) (x + 3)
(iii) x
42. Check whether the polynomial g (x) is a factor of f(x) or not in each of the following:
(i)
f (x) = x³ - 3 x2 + 5 x – 2
(ii)
f (x) = -5x3- 3x2 +7x -2
3
g (x) = +
g(x) = 2 – 5x
2
(iii)
f(x) = 4x + 7x – 2x + 5
g(x) = 2x – 3
(iv)
f(x) = x3 – 3x2 + 4x – 4
g(x) = x – 2
43. Find the remainder when p(x) is divided by q(x):
(i) p(x) = 3x4 – 4x3 – 3x – 1,
q(x) = x – 1
(ii)p(x) = 4x3 – 12x2 + 14x – 3m
q(x) = x -
44. Expand the following using the suitable identity:
45. (i) ( x – 4y + 3z )2
(ii) ( -4x + 2y – z )2 (iii) (0.1x – 0.2y)3
46. Express 0.6 + 0.̅ + 0.̅̅̅̅ in the form of
47. If a = 5 - 2
, then find the value of :
48. If x =
and y =
49. If x =
, y=
(i)
(ii) a2 +
-
then find the value of x2 + y2 + xy
, find x2 + xy + y2
50. Visualise the representation of 4.387 on the number line.
51. Which is the greatest?
,
or
?
52. Find the factors of 27 + y3?
53. Find the value of ‘a’ and ‘b’ if (i)
–
-
–
= a+b
54. (ii)
-
=a+b
55. Evaluate:
+
+ ……. +
+
56. Write the following in decimal form and find what kind of decimal expansion do they have:
57. (i)
(ii)
(iii) 6
(iv)
v)
58. Simplify:
59. If a = 8 + 3
and b = , then what will be the value of a2 + b2 ?
60. Express in the form , if ‘p’ and ‘q’ are integers and q ≠ 0.
61. (i) 8.3̅̅̅̅
(iv) 1.00̅̅̅̅
(ii) 0.15 ̅
(iii) 3.̅
(v) 0.0323232……
(vi) 6.197777…..
62. Simplify each of the following:
63. i)
-5
64. (iv) 3
+ 11
-
√
(ii) 5
+ √
+2
-2
(v) 13 ¼ ÷ 13 -5/4
(iii)
(v) (4
x
-
3
)2
65. By remainder theorem, find the remainder when 3x4 – 4x3 – 3x -1 is divided by x + 2.
66. For what value of ‘k’ , x – 3 is a factor of p(x) = x3 – 6x2 + kx – 6 ?
67. If 2x + 1 is a factor of the polynomial 4x2 – kx + k, then find the value of ‘k’
68. If x15 -199 is divided by x – 1 , find the remainder.
69. If x + y = -4 and xy = 2, then find the value of x2 + y2?
70. Find the value of ‘a’ , if x-a is a factor of :
71. i) x3 – 2ax2 + x – a + 1
(ii) x6 –a2x2 + 2x + a + 1
72. If 4x3 + 7x2 – 3x – 6 is divided by x + 1, then find the quotient.
Collect
73. History of 3 great mathematicians
74. Reasons why π is termed as an irrational number?
75. Details of Pythagoras Theorem & its development & uses.
76. The usage of all the 15 chapters in Mathematics in our day to day life
77. Solve 4 pages full of questions given from the first 2 chapters
SOCIAL SCIENCE
POLITICAL SCIENCE
1.
2.
3.
4.
5.
Collect the cartoons of R K Lakshmanan on Indian democracy.
Prepare a collage work of Indian Election process.
Prepare a write up on the functions and organs of UNO, Collect UNICEF cards.
Make a project/ project on any four fundamental rights
Eg. Cultural and Educational rights/ rights against exploitation (child labour).
GEOGRAPHY
1.
2.
3.
Draw a bar diagram to show the countries larger than India both population and area wise.
Make a project on Incredible India.
In the India map mark (a) the neighbouring countries, (b) standard meridian, tropic of cancer, (c)
north and south most latitudes, (d) union territories and (e) the states sharing border with Nepal
/China.
Note down the time of sunrise and sunset for a week.
4.
HISTORY
1.
2.
Draw the political symbols and write their significance in French Revolution.
Collect information on Nepolian Bonaporte.
ECONOMICS
1. Make an assignment on sectors of Indian Economy with suitable pictures (Refer page-19)
2. Learn question answers of Chapter – 1 Story of Village Palampur.
DIASTER MANAGEMENT
1.
2.
3.
Prepare a project on disaster management - Nepal earth quake.
Describe the ways in which you can be helpful in disastrous situations.
List the dos and don’ts at times of natural disasters.
.1.2.3-
-
,
.4.
.
1.
२.
3.
4.
1.
2.
3.
_____________________________________________________________________________
CLASS X
ENGLISH
A. Collect the pictures and informations from the life history of:
1.Robert Frost .
2. Nelson Mandela.
3. Any Indian Reformer.
B. Do the grammar assignments given.
SCIENCE
CHEMISTRY: Make 50 question & answers from chapter 1 Chemical Reactions & Equations & do all
book exercises.
Write all activities in A4 sheet.
PHYSICS: Make 50 question & answers from chapter 14 Sources of Energy & do all book exercises.
Make a model of 1. Solar Cooker 2. Wind Mill
In scrap book paste all conventional and non-conventional sources of energy pictures.
Eg: Biomass, Tidal energy, geothermal energy etc.
SCEINCE- ANY ONE WORKING MODEL FOR SCIENCE EXHIBITION
Read more books related to science and social science. Collect important news of political issues:
(paper cuttings)
CLASS 10 BIOLOGY
Q1
Q2
Q3
MAKE A MODEL OF
1. Artificial kidney
2. Respiratory system
3. Digestive system
Activity any one
1. Visit a health centre and collect data about the hemoglobin content
in
Adult males , adult females , infant and children
2. Chlorophyll is necessary for photosynthesis
3. Carbon dioxide is necessary for photosynthesis
In the flow chart fill the blank spaces in the kind of energy available
1
CO2 + H2O
hetrotrophs
Q4
Q5
Q6
Q7
Autotraphs
2
Carbohydrates
Photosynthesis reaction and events occur during photosynthesis .
Stomata diagram and its parts
Steps of nutrition in amoeba
Digestive glands , enzymes and their action
MATHEMATICS
Collect
1. History of 5 mathematicians
2. History of π
3. Details of Pythagoras Theorem & its development & uses.
4. Co-relate all the 15 chapters in Mathematics with our day to day life and try to find their use.
Solve the questions .
5. If 2x – 3y = 7 and (a+b)x – (a+b-3)y = 4a+b represent coincident lines, then ‘a’ and
‘b’ satisfy the equation
(i) a + 5b = 0
(ii) 5a + b = 0
(iii) a – 5b = 0
(iv) 5a – b = 0
6. Find the value of ‘k’ for which the system of equations kx – y = 2, 6x – 2y = 3 has a
unique solution.
7. Find the value of ‘k’ for which the system of equations has no solution.
(i)
2x + y – 3 = 0 and 5x + ky + 7 = 0
(ii) Kx + 3y = k-3 and 12x + ky = k
8. Find the value of ‘k’ for which the equations have infinitely many solutions.
(i) 2x +3 y= 7 and 8x + (k + 4)y -28 = 0
(ii) 2x + 3y = 7 and (a+b)x + (2a – b)y = 21
(iii) 2x + 3y = 7 and 2ax + ay = 28 – by
(iv) 2x + 37 = 7 and (a-b)x + (a+b)y = 3a + b -2
(v) 2x – (2a +5)y = 5 and (2b +1)x – 9y = 15
9. Is the pair of equations x – y = 5 and 2y – x = 10 inconsistent? Justify.
10. Find the value of ‘k’ for which the lines
(k+1)x + 3ky + 15 = 0 and 5x + ky + 5 = 0 are coincident.
11. If the system of equations 4x + y = 3 and (2k-1)x + (k-1)y = 2k + 1 is inconsistent,
then find ‘k’
12. Do the equations 5x + 7y = 8 and 10x + 14y = 4 represent coincident lines?
13. Find the value of ‘α’ and ‘β’ for which the equations
2x + 3y = 7 and 2ax + (α + β )y = 28 have infinitely many solutions.
14. If 3x + 7y = -1 and 4y – 5x + 14 = 0, find the values of 3x – 8y and
15. Find the solution of the equations
+ – 1 = 0 and
+
– 2.
= 15. Hence find λ, if y =
λx + 5.
16. Draw the graph of the equations x – 2y = 5 and 3x + 5y = 1. Write the vertices of the
triangle formed by these lines and the y-axis. Also find the area of the ∆.
17. If x=a and y=b is the solution of equations x-y = 5 and x+y = 3, find ‘a’ and ‘b’
18. The angles of a triangle are x, y and 40˚. The difference between the two angles x
and y is 30˚. Find x and y
19. The angles of a cyclic quadrilateral ABCD are /_A = (2x + 4 )˚ , /_B = (y + 3 )˚ , /_C
= (2y + 10)˚ and /_D = (4x – 5)˚. Find x and y and hence the values of the four
angles of the quadrilateral.
20. Find whether the following pairs of equations are consistent or not by graphical
method. If consistent, solve them:
i)
x – 2y = 6 ; 3x – 6y = 0
ii)
5x + 3y = 1 ; x + 5y + 13 = 0
iii) 4x + 7y = -11 ; 5x – y + 4 = 0
21. The age of father is twice the sum of the ages of his two children. After 20 years,
his age will be equal to the sum of the ages of his children. Find the age of the
father.
22. Half the perimeter of a rectangular garden, whose length is 4m more than its width
is 36m. Find the dimensions of the garden.
23. The larger of two supplementary angles exceeds thrice the smaller by 20 degrees.
Find them.
24. Solve graphically each of the following system of equations. Also find the
coordinates of the points where the lines meet the (i) x axis (ii) y axis
(i)
x + 2y – 7 = 0 ; 2x – y – 4 = 0
(ii) 3x + 2y = 8 ;
x – 2y = -3
(iii) x + 2y = 5 ;
2x – 3y = -4
(iv) 2x + 3y = 8 ; x – 2y = -3
25. Solve the following by cross multiplication method.
(i)
Ax + by = a – b ; bx – ay = a + b
(ii) 2(ax – by) + a + 4b = 0 ; 2(bx + ay) + b – 4a = 0
(iii) mx – ny = m2 + n2 ; x + y = 2m
(iv)
+
=5
;
+
=9
26. A two digit number is 3 more than 4 times the sum of its digits. If 18 is added to the
number, the digits are reversed. Represent this situation algebraically and
geometrically.
27. Determine graphically, the vertices of the triangle formed by the lines
y = x, 3y = x, x + y = 8
28. Two numbers are in the ratio of 1:3. If 5 is addd to both the numbers, the ratio
becomes 1:2. Find the numbers.
29. A’s age is six times B’s age. Four years hence, the age of A will be four times B’s
age. Find the present ages, in years, of A and B.
30. Draw the graphs of the equations y = -1, y = 3 and 4x – y = 5. Also, find the araa of
the quadrilateral formed by these lines and the y-axis.
31. The sum of a two digit number and the number obtained by reversing the order of
its digits is 165. If the digits differ by 3, find the number.
32. A two digit number is 4 times the sum of its digits and twice the product of the
digits. Find the number.
33. The sum of the numerator and the denominator of a fraction is 3 less than twice the
denominator. If the numerator and denominator are decreased by 1, the numerator
becomes half the denominator. Determine the fraction.
34. Two years ago, father was five times as old as his son. Two years later, his age will
be 8 more than three times the age of the son. Find the present ages of father and
son.
35. Yash scored 35 marks in a test, getting 2 marks for each right answer and losing 1
mark for each wrong answer. Had 4 marks been awarded for each correct answer
and 2 marks been deducted for each incorrect answer, then Yash would have scored
50 marks. How manyquestions were there in the test?
36. The car hire charges in a city comprise of a fixed charges together with the charge
for the distance covered. For a jouney of 12km, the charge paid is Rs.89 and for a
journey of 20km, the charge paid is Rs.145. What will a person have to pay for
travelling a distance of 30km?
37. The students of a class are made to stand in rows. If 3 students are extra in a row,
there would be 1 row less. If 3 students are less in a row, there would be 2 rows
more. Find the number of students in the class.
38. A man travels 600km partly by train and partly by car. If he covers 400km by train
and the rest by car, it takes him 6 hours and 30 minutes. But, if he travels 200km by
train and the rest by car, it takes half an hour longer. Find the speed of the train
and that of the car.
39. The number of solutions of the equations x + 3y -4 = 0 and 2x + 6y = 7 is____
40. If the equations 4x + 3y = 9 ; 2ax + (a+b)y = 18 have infinitely many solutions then
____ i) b = 2a
ii) a = 2b
iii) a + 2b = 0
iv) 2a- b = 0
41. If x = a and y = b is the solution of the equations x – y = 2 and x + y = 4, then the
values of ‘a’ and ‘b’ are respectively ____________
42. When is a system of linear equations called inconsistent?
43. Is it true to say that the pair of equations x + 2y -3 = 0 and 3x + 6y – 9 = 0 is
dependent?
44. The cost of 4 pens and 4 pencil boxes is Rs.100. Three times the cost of a pen is Rs.15
more than the cost of a pencil box. Form the equations and find the cost of a pen and a
pencil box.
SOCIAL SCIENCE
POLITICAL SCIENCE: Write all the question & answers from chapter 1 Power Sharing.
Make a collage of Belgium, Sri lanka. (Important events only)
GEOGRAPHY: write all the question & answers from chapter 1 Resources & development.
Make a project from Forest &Wild Animals. Collect different types of soil.
Do any 2 activity from the chapter.
ECONOMICS
1, why do we use averages? Are there any limitations to their use?
2. List a few examples of environment degradation that you may have observed around you with
suitable pictures.
3. Learn and write question answers from Chapter – 1.
HISTORY
1. Prepare the answer for lthe following questions in an assignment copy:
a) Name the architect and the planner who developed the garden city in England.
b) Mention three processes that shaped the modern cities in a decisive way.
c) What measures were taken to clean up London.
d) ‘Crime flourished with the growth of London’. Explain this statement.
e) How far was underground railway able to solve the transport problem as well as housing
crisis in London in the 19th Century?
f) Why is Mumbai known as the ’city of dreams’? Give reasons.
g) Why was the land reclamation in Bombay necessary? Mention any two land reclamation
projects taken up in Bombay.
II To prepare a power point presentation on the development of any of the city- London or Bombay.
.1
.2.3.4-
.
1.
२.
3.
4.
5.
-
1.
2.
3.
--------------------------------------------------------------------------------------