HOLIDAY ASSIGNMENT 2017-18
CLASS IX
SUBJECT- ENGLISH
Q-1 Compulsory book reading Project
Totoo-Chan: The Little Girl At The Window - Tetsuko Kuroyanagi
Students will be tested on the basis of their reading of their reading on 17 th June 2017, Saturday.
ग्रीष्मकालीन गह
ृ कार्य 2017-18
कक्षा ९
विषर् –हहिंदी
प्रश्न १ ननम्नलऱखित अऱॊकारों के एक - एक उदाहरण लऱखिए –
उऩमा ,यमक,मानवीकरण
प्रश्न २ श्ऱेष अऱॊकार की ऩररभाषा लऱिकर उसका उदाहरण लऱखिए
प्रश्न ३ ननम्नलऱखित ऩॊक्ततयों में अऱॊकार ऩहचाननए
१ अवधध अधार आस आवन की
२ हहमकणों से ऩण
ू ण मानों हो गए ऩॊकज नए
३ जॊगऱ में झरबेरी झूऱी
४ मन-सागर ,मनसा ऱहरर ,बूढ़े –बढ़े अनेक
प्रश्न ४ दो बैऱों की कथा
ऩाठ में कौन-कौन से नीनत ववषयक मूल्य उभरकर आये हैं ?
प्रश्न ५ ककसान जीवन वाऱे समाज में ऩशु और मनष्ु य के आऩसी सम्बन्ध को कहानी में ककस तरह व्यतत
ककया गया है ?
प्रश्न ६ शत्रओ
ु ॊ के बारे में हीरा – मोती के ववचार ककस प्रकार लभन्न थे?
प्रश्न ७ नतब्बत की कौन कौनसी बातें ऱेिक को अच्छी ऱगीॊ ?
प्रश्न ८ नतब्बत में डाॉड़े डाकुओॊ के लऱए सबसे अच्छी जगह तयों हैं ?
प्रश्न ९ सम
ु नत कौन था ?उसके व्यक्ततत्व की ववशेषताएॉ लऱखिए l
प्रश्न १० अऩने ववद्याऱय की ववशेषताएॉ बताते हुए अऩने लमत्र को ऩत्र लऱखिए l
HOLIDAY ASSIGNMENT 2017-18
CLASS- IX
MATHEMATICS
Solve at least 10 questions :
1. Define surds with examples.
3 3
4
2. Express the following as pure surds: (i) 3 6 (ii)4 128 (iii) 2 5 (iv) 𝑥 𝑥 𝑥 ; x being a rational
number.
3
4
3. Express as a mixed surd; (i) 144 (ii) 1280
3
3
3
4. Simplify (i) 15 6 – 216 + 96 (ii) 5 250+7 16 -14 54
3
4
3
4
5. Arrange in ascending order : (i) 2 , 3 , 5 (ii) 2 , 3 , 5
6. Find the rationalizing factor of 1 + 2 + 3 .
7. Rationalize:
(i)
8. If
3+ 2
3− 2
3+2 2
3− 2
(ii)
1
3− 2+ 1
= a + b 2 , where a and b are rationals, find a and b .
9. Simplify:
3 7
5+ 2
10. Prove that :
-
5 5
2+ 7
+
2 2
7+
5
.
− 3+ 3+8 7+4 3 =2.
11. Represent on the number line : (i) 3 (ii) 5 (iii) 20 (iv)
1
9.3
1
12. If x = 3 + 2 2 , find the values of (i) x + 𝑥 (ii) 𝑥 2 + 𝑥 2 .
13. Express 12.47 in p/q form.
14. Find zeroes of the following polynomials:
(i) P(x) = 2x+1 (ii) P(x) = x2- 1 (iii) P(x) = x2 + 7x +10
15. Using remainder theorem find remainder if P(x) = x4 + x3 – 2x2 + x + 1 is divided by x – 1 .
16. Find the value of K , if x – 1 is a factor of 4x3 + 3x2- 4x + K .
17. Using factor theorem, factorise p(x) = x3+13x2+32x + 20.
18. Factorise : 35y2 + 13y -12 .
19. If x+y=5 and xy = 6, then find x3 + y3.
20. Factorise : 8x3 +y3 + 27z3 – 18xyz .
HOLIDAY ASSIGNMENT 2017-18
CLASS- IX
SCIENCE
Q.1 Why do we see water droplets on the outer surface of a glass containing ice cold water in it?
Q.2 Define density and give its SI unit.
Q.3 Why do the gases exerts more pressure on the walls of container than the solids?
Q.4 Design an experiment to show that ammonium chloride undergoes sublimation.
Q.5Why does the temperature remain constant during the melting of ice even though heat is supplied
continuously?
Q.6 Explain how the temperature. Surface area, humidity and wind speed affect the rate of evaporation?
Q.7 Design an activity to show the particulate nature of matter.
Q.8 Why do doctors advice to put strips of wet cloth on the fore head of a person having high fever?
Q.9 Give two ways in which melting points and boiling points can be useful.
Q.10 Can a rubber band change its shape on stretching? Is it a solid?
Q.11 Describe an activity to determine the boiling point of water and melting pint of ice.
Q.12 Identify the dispersed phase and dispersing medium in the following colloids- fog, cheese, coloured gem
stones.
Q.13 Smoke and fog both are aerosols. In what way they are different?
Q.14 Give the differences between elements, compounds and mixtures.
Q.15 Give the differences between true solution and suspension.
Write practical in your laboratory record file.
List of practical(i) General introduction of the laboratory.- Draw and write (two lines each) general apparatus used in
laboratory such as test tube, glass slide, beaker, stain, cover slip, conical flask, tripod stand, funnel,
burner, watch glass, Petri dish.
Physics
(1) . To verify the Laws of reflection of sound.
2. To determine the density of solid (denser than water) by using a spring balance and a measuring cylinder.
3. To establish the relation between the loss in weight of a solid when fully immersed in
a. tap water
b. strongly salty water, with the weight of water displaced by it by taking at least two different solids.
To determine the speed of a pulse propagated through a stretched string/slinky.
(1)To prepare:
a) A true solution of common salt, sugar and alum
b) A suspension of soil, chalk powder and fine sand in water
c) A colloidal solution of starch in water and egg albumin/milk in water and distinguish between these on the
basis of
Transparency
Filtration criterion
Stability
(2). To prepare
a) a mixture
b) a compound
Using iron filings and sulphur powder and distinguish between these on the basis of:
i. appearance, i.e., homogeneity and heterogeneity
ii. behaviour towards a magnet
iii. behaviour towards carbon disulphide as a solvent
iv. Effect of heat
(3) To separate the components of a mixture of sand, common salt and ammonium chloride (or camphor) by
sublimation.
(4)To carry out the following reactions and classify them as physical or chemical changes:
a. Iron with copper sulphate solution in water
b. Burning of magnesium in air
c. Zinc with dilute sulphuric acid
d. Heating of copper sulphate
e. Sodium sulphate with barium chloride in the form of their solutions in water
(5). To determine the melting point of ice and the boiling point of water.
(6). To verify the law of conservation of mass in a chemical reaction.
Biology(1) To prepare stained temporary mounts of (a) onion peel and (b) human cheek cells and to record
observations and draw their labeled diagrams.
(2). To identify parenchyma,collenchyma and sclerenchyma tissues in plants, striped, smooth and cardiac
muscle fibers and nerve cells in animals, from prepared slides and to draw their labeled diagrams.
(3) To study the characteristic of Spirogyra/Agaricus, Moss/Fern, Pinus ( either with male or female cone) and
an Angiospermic plant. Draw and give two identifying features of the groups they belong to.
(4). To observe the given pictures/charts/models of earthworm, cockroach, bony fish and bird. For each
organism,draw their
picture and record:a. one specific feature of its phylum.b. one adaptive feature with reference to its habitat.
(5).. To study the external features of root, stem, leaf and flower of monocot and dicot plants.
HOLIDAY HOMEWORK 2017-18
CLASS IX AND X
SOCIAL SCIENCE
Class IX:
Make a project on man –made disaster taking help from disaster management book on following points:
Introduction: Meaning of disaster, types, management, causes, effects
Case study ( any one)
1. Complete information , occurrence, devastation, caused, special effects
2. Relief and rehabilitation
3. Survival skills
4. Role of community and government
5. Prevention
Conclusion:
( HAND WRITTEN PROJECT ON 15 A4 SIZE PAGES INCLUDING FRONT PAGE) DATE OF SUBMISSION: 17TH JUNE
2017.