DAV PUBLIC SCHOOL, PUSHPANAJLI ENCLAVE
SESSION 2017-18
HOLIDAYS HOMEWORK FOR CLASS 9
ENGLISH
Q1.Read the Novel, “Three Men in a boat” and answer the following questions in 100 words
each
a)Comment on the use of humour in the story
b)Give a brief character sketch of
->Harris
->George
->Montmorency
Q2.Complete the following worksheets in workbook.
Reading - Page(121-134)
Q1 to Q8
Grammer- Page(138-144)
Q1 to Q10
*Complete the given work in the English Language (grammar)notebook.
HINDI
MATHS
Q1.Assignments of the following chapters in assignment registers.(uploaded on website)
a)Number system
b)Polynomials
Q2.Revise Chapter in practice copy.
a)Number system
b)Polynomials
c)Lines and Angle
Q3.Prepare for Unit test.
SCIENCE
PHYSICS
CHEMISTRY
HOTS
Q.1.A change in the physical state of any matter can be caused by either of the
following.
a.)By changing temperature.
b.)By changing pressure.
c.)By changing both temp & pressure.
Q.2.The graph given below shows the heating curve for a pure subs.The temperature
rises with time as the subs. Is heated.
a.)what is the physical state of the subs. At the points A,B,C&D?
b.)what is the melting point of the substance?
c.)what is its boiling point?
d.)what happens to the temp. while the subs. In changing state?
e.)the substance is not water.How can you judge from the graph?
Q.3.Why does evaporation cause cooling?
Q.4.Why gases are compressible but not liquids?
Q.5.Air becomes liquid at 82k and solid at 61k.Convert these temp. on Celsius scale.
Q.6.Compare the following in the three states of matter.
a.)interparticle space
b.)interparticle forces of attraction
c.)particle motion
Q7. Give reason :a) Solids donot need a container to keep them.
b) A liquid is considered as a fluid.
c) Ice at 0 C appears colder in the mouth than water at the same temperature.
Q8. What are the properties of particles of matter that decide whether a given
substance will exist as solid, liquid or gas?
Q9. The flame under a whistling cooker is suddenly put off. The whistle is then removed
to release the steam and the lid is forcibly opened. You see water still boiling in the
cooker even when no flame is underneath it. Explain why?
Q10. A student spilled a bottle of ammonia in a corner of lab. Soon the whole lab was
filled with pungent irritating smell.the students immediately opened the windows and
doors and switched on the exhaust fans. After sometime, students got relief. Explain
what actually happened.
BIOLOGY
1. Complete Practical file and note books of Biology
2. Revise lesson- Fundamental unit of life for unit test
3. Draw neat Labelled diagram of Prokaryotic cell, Eukaryotic- animals and plant cell
On A-4 Sheets.
SOCIAL SCIENCE
->Make a project file or calendar on Disaster management.
Introduction to disaster management
Natural and man-made disaster.
Case study on any one type of disaster.
->Revise the whole syllabus.
->Complete your assignment given in the class.
INFORMATION TECHNOLOGY
Q1.Do assignment of Chap1-Fundamental of computer in your notebook.
Note: Assignment of chapter 1 and Link of IT Vocational book has been provided on
School website. Refer book for assignment.