Kaanger Valley Academy
Holiday Assignment-2017-18
CLASS IX
English
1. Imagine that, while hiking, you found a tribe in a remote area of India. Write a letter to your friend
about your discovery.
2. You are Sachin/Sarita. You feel that many students consider fashion as the hallmark of their
personality. Write an article in 120 - 150 words on "Craze for Fashion".
3. Write an essay on "A Free World without Borders and Governments" in about 300words.
Reading Assignment (Will be assessed)
The Unposted Letter by Mahatreya
SCIENCE
1. Prepare a write up (hand written) for science exhibition in any one of the sub-themes given in
your diary. The write up should include the title, objective/aim, scientific principle involved,
materials used, figure, working, investigation, approximate cost, utility and further scope.
2. An object is moving along a circular path of radius r. What will be the distance travelled and
displacement of the body when it completes half a revolution?
3. If a body travels for time t with speed v1 and further it travels for time t with speed v2, then find
the average speed of the body.
4. What is the basis of long life of pickles and jams? What lesson does one get from this fact?
5. Presence of nucleus is essential for maintenance and working of cells, so nucleus is commonly
called as “Director of cell”. Answer the following questions:
(a) Give the term for the cells having incipient nucleus.
(b) Name two cell types having no nucleus.
(c) Name various parts of a nucleus and state one function of each of them.
6. (a) Name the phenomenon which helps fresh water unicellular organisms (e.g. Amoeba)
continuously gain water in their bodies. Also name the mechanism by which these organisms throw
out excess of water from their bodies.
(b) Give at least two examples in plants where similar phenomenon is used to gain water.
7. The melting points of three solids X, Y and Z are 298K, 314K and 398K, respectively. Arrange
these in increasing order of their inter-particle force of attraction.
8. Give an example to prove that the rate of diffusion of liquids decreases with increase in density of
the liquid.
9. Carbon dioxide was taken in an enclosed cylinder and compressed by applying pressure.
(a) Which state of matter will be obtained after completion of the process?
(b) Name and define this process. What is the common name of the product obtained in this process?
Social Science
Prepare a Report File on any ONE of the following Topics of Disaster Management.
TOPICS:
a. Forest Fire
b. Drought
c. Floods
d. Earth Quake
e. Land Slides
f. Chemical Disasters (*Students have been given Guidelines for the same.)
Mathematics
1. The axis divides the plane into four parts. What these four parts called?
2. What are the co-ordinates of origin?
3. What is the point of intersection of axis called?
4. Line y = 2 is parallel to which axis?
5. Line x = -3 is parallel to which axis?
6. What is the perpendicular distance of the point P(4,3) from x-axis?
7.Find <DEC?
8. Find unknown angles
.
.
9. Divide the polynomial 3X4 -4X3 -3X-1 by ( X-1) using long division method.
10. Find the remainder obtained on dividing p(x) = x3+1 by x+1.
11. Factorize X3- 23X2 +142X-120.
12. Expand 27X3 -125Y3 .
13.Evaluate (999)3 using suitable identities.
14.Without actually calculating cubes find (-35)3 + (17)3 + (18)3.
15. Give definition of polynomial with example.
16. Factorize 4X2+9Y2+16Z2 +12XY-24YZ-16XZ.
Maths Lab Activity
1. To make a square root spiral by paper folding.
2. To verify the identity a3-b3 = (a-b) (a2+ab+b2)
3. To verify the identity a3 + b3 = (a+b ) (a2-ab +b2)
4. To verify identity (a+b)3 = a3+b3+3a2b+3ab2
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