- dav hzl senior secondary school

Holiday homework
Class-IX
English
1. Learn chapter one of literature book for FA-1
2. Read the novel “Three Men in a boat”.
3. This summer vacation your school took the students of std. IX on an educational trip to Delhi.
Agra, Fatehpur Sikri for ten days. Write a brief account of it for the travelogue page of your
School magazine. (80 words) on an A4 size paper.
4. Write an article on “save mother earth” in about 100 words.
Mathematics
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Activity 1, 2, 3 and 4 do in activity file.
History of 𝜋, why pie is irrational number while 22/7 is an irrational number do in activity file.
Two questions related to insert rational number between any two rational numbers.
Three questions related to insert irrational number between any two rational numbers.
Convert into p/q form of the following repeating non-terminating decimals.
o 0.239̇
o 0. 2̇3̇
o 2.0345454545………………
o 7.893893893……………….
o 2.34̇ + 5. 7̇6̇
Represent √7.6 , √13.2, √14 𝑎𝑛𝑑 √10.1 on the number line.
10 questions related to simplification on of surd.
10 questions related to rationalization.
20 questions related to exponents and power.
Science
Section - A (Biology)
1. Ix class -
(a) Project workMake a model or draw on chart paper, any one diagram of following
and label it properly(i)
Plant cell
(ii)
Animal cell
(iii)
Nerve cell
(iv)
Types of connective tissue, muscular tissue and epithelial tissue.
(b) Frame and write 20 MCQ types questions on topic “ cell’’ .
And also prepare the answer key.
Section – B (PHYSICS)
Q-1.
If the displacement of a body is zero ,is it necessary the distance covered by it is also zero? Why?
Q-2.
Can the displacement be grater than displacement travelled by an object ?
Q-3.
Is the displacement may be less than zero? Illustrate with example.
Q-4
An athlete run on a circular trace of radius 4m
i)
ii)
Write distance travelled by athlete in one and half round.
Write displacement travelled by athlete in one and half round.
Q-5.
Name the device which measure the distance travelled by the car.
Q-6).
Name the device which measure the speed of the car.Is it measure the average speed or
instantaneous speed . Define the right term i.e; instantaneous or average.
Q-7). What could be the numerical ratio of displacement and distance?
Q-8) . Draw the distance-time graph from a given table. Writes its type of motion.
S.N.
Time (s)
Distance (m)
1
0
10
2
5
15
3
10
20
4
15
25
5
20
35
Q-9). The minute hands of a clock is 7 cm long .Find the distance and displacement covered by it from
9:00 am to 9:30am.
10). Velocity time graph given below the motion of a cyclist. Find (i) its acceleration , (ii) its velocity (iii)
Distance covered by the cyclist in 15s.
velocity
20ms-1
0
Section – C
stime
(Chemistry )
1. Write short note on Dry Ice.
2. What is the difference between gas and a vapour?
3. Account for the following observations:a) Interconversion of matter is a constant temperature process.
b) Sponge, though compressible is a solid.
c) Rate of Evaporation of an aqueous solution decreases with increase in humidity.
4. “ Osmosis is a special kind of Diffusion”.Comment.
5. Explain why Fahrenheit scale is the best scale for measuring temperature.
6. Write short note on Fourth and fifth state of matter.
7. You are provided with a mixture of Naphthalene, Sand and NaCl. Suggest an activity to separate them with
well labelled diagram.
8. Frame and write 20 MCQ types questions on topic “ matter in our surroundings’’ and also prepare
the answer key.
Social Studies
1. Why is the difference between the durations of day and night hardly felt at Kanyakumari but not so in Kashmir?
2. Why 82o 30’ E has been selected as the Standard Meridian of India?
3. Classify the states into four groups each having common frontiers with
I.
China
II.
Pakistan
III.
Myanmar
IV.
Bangladesh
4. Identify the following with the help of map reading.
I.
The island group of India lying in the Arabian sea and the Bay of Bengal.
II.
The states through which the Tropic of cancer passes.
III.
The northern most latitude in degrees.
IV.
The southernmost latitude of the Indian mainland in degrees.
V.
The eastern and the western most longitude in degrees.
VI.
The union territories in India.