Ghaziabad Public School
Holiday Homework - 2015
Class – XIth SCI
GUIDELINES
1. Summer vacation is here with all the fun and frolic. Apart
from enjoying we want our students to keep in touch with
their studies, so let’s explore the world knowledge in a
different way with these assignments
2. The holiday home work should be done as specified by the
subject teacher.
3. Written Assignment will be done in Home Work copy.
4. Manage your time in such a way that a little work is done
every day to avoid piling it for the last moment. Keep a
fixed a time for doing it every day.
5. Collect the material required for the work in advance.
6. All the holiday home work must be submitted by or before
6th July. The work submitted later shall not be marked.
7. It is compulsory to complete HHW, there will be internal
marking in all assignments that will be add in FA 2 Result .
Happy
Holiday
Enjoy your Vacation
andSummer
have a Great
Time with your
family!!!
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CLASS
XI SCI
Holiday Homework -2015
English
Revisions of Lesson’s question/answer and write down the summary of all chapter in their notebook
1. The Portrait of a lady
2. “We’re not afraid to Die-----if We Can All Be Together”
3. Discovering Tut:The Saga Continues
4. The summer of the beautiful White Horse
5. The Address
6. Ranga’s Marriage
Poetry—
1.A Photograph
2.The Voice of the Rain
3. Childhood
ASL: Topic has been given to, student needs to prepare with his/her topic
20 Phrase needs to be written and remember to be used in English communication
Grammar: Format of Notice, Report And Article writing and one Notice and Report on Current should be in student’s
notebook.
Q 1. Write the summary of first three chapters of the novel ‘Canterville Ghost’.
Q.2.
Write an article regarding ‘Mother’s Day’.
Q.3.
Write a letter to the Editor regarding value of ‘Outdoor Games’.
Q.4.
Write any two notices.
Q.5
Read the novel ‘Canterville Ghost’
Physics
Investigatory Projects- Physics
As per C.B.S.E. guidelines, all students have to prepare one Investigatory Project carrying 30 marks. All
students are therefore, advised to prepare one Investigatory Project on the following topics:
POINTERS FOR MAKING PROJECT REPORT
The material should be placed and bound in the following order:
1. Top Sheet of transparent plastic –The top page of your report should carry the following information in
printed form or handwritten in neat block letters:
Title of Project:
Name of Student:
Roll Number:
Date of submission:
2. Aim of Project
3. Apparatus required
4. Principle/theory
5. construction with labeled diagram,
6. Working
7. Observations
8. calculations,
9. Result/ Conclusions
10. Applications,
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CLASS XISCI
Holiday Homework -2015
11. Graphs if any,
12. References/bibliography
13. Back cover of plastic: may be opaque or transparent
List of Investigatory Projects
1. To demonstrate that a centripetal force is necessary for moving a body with a uniform speed along circle,
and that the magnitude of this force increases with increase in angular speed.(Roll No-1 to 10)
2. To demonstrate inter-conversion of potential and kinetic energy and also make research and analysis
including practical application.(Roll no-10-20)
3. Make a descriptive project on conservation of linear momentum,and also make research and analysis on
this topic and also inclide example of daily life.(Roll No-20-30)
4. Make a project on the law of motion including some example and also make research and prepare power
point presentation on this.(Roll No-31 to 41)
Chemistry
Mmake a project related to the topics discussed in class.
Topics are1."The analysis of spectrum with types and applications"(for even roll numbers)
2."The different quantum numbers related to the structure of atom"(for odd roll numbers)
The project must be analytical and based on research; survey; with creativity.
Biology
Q1 Making of Herbarium: Children, you have been recently studying the morphology and anatomy of
the flowering plants. A lot of plants were mentioned and observed by you and also the specimens
(preserved as well as live) which were brought to the class for studying, to build an understanding of
the arrangement of various parts of the plant organs. You can now :
 Prepare a herbarium of same , by collecting specimens and categorizing them according to the
way we studied them and also classified them. A Herbarium is a store house of collected
plant specimens which are dried, pressed and preserved on sheets. Further these sheets
are arranged according to a universally accepted system of classification. These
specimens along with their descriptions on herbarium sheets become a repository for
future use. The herbarium sheets also carry a label providing information about the
date and place of collection, names(English, local and Botanical names), family,
collectors name etc. This exercise serves as a quick referral system in taxonomic
studies.
 This can be presented on the herbarium sheets (brought from the market and if not available
buy chart papers. Cut it into four parts and paste the dried plant on it with the details of the
plant to be written on the right hand side of the sheet. Do not forget to mention the name of
the plant as well as the description and location on the bottom right hand side of the sheet.
 Immense value would be added to your collection, if you come across plants (for which we
could not procure specimens) on your trip to various destinations during the vacations.
Q2 Investigatory project:
Dear students,
Please remember always,
“Science operates on the edge of what is known,,, to discover more about what is not… we have to
be a person of what we can do to explore being young scientists……
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Holiday Homework -2015
You can increase your knowledge of the world around you by listening to others, reading books, watching
scientific television channels and surfing the Internet… However, one of the most exciting ways of
increasing your knowledge is to put on the shoes of the scientist and conduct your own experimental
investigations….
Since you all decided to be biologist to work out your projects, you can be a great biologist in your field of
the chosen topic, so you do your research and discuss to gain more competence and expertise to deal with
the subject project chosen by you.
List of few project topics:
( please note: Abbreviation MR means Materials Required)
1. Any human disease can be taken as a topic and collect the complete information with statistical data
and a support of statistical analysis about the same questioners.
2. Study of coaguable and non-coaguable milk proteins. (M.R.- milk, test tubes, rennin tablet, millon’s
reagent, beaker, burner, etc).
3. To study the adaptability of cockroaches to drastic environmental changes such as (a) complete
darkness (b) continuous light (c) refrigerator. (d) high conc. of CO2. (M.R.- live cockroaches,
refrigerator, four small tin boxes, bread, water, dil.Hcl and CaCO3.)
4. Study of drug resistance in bacteria using antibiotics. (M.R.- agar, starch, dis.water, petridishes and any
2/3 antibiotic powders.)
5. Study of locomotion in fishes, importance of different fins in balancing and steering the body. (M.R.- a
fish tank, live fishes, scissors, petridishes, cotton).
6. Effects on plant movement (effects of light and effects of gravity). (M.R.- a potted plant, maize grains /
bean / green gram seeds, petridishes, cotton).
7. To study the effects of light on sporulation in fungi. (M.R.- bread slices, cotton, petridishes).
8. To investigate the frequency of genes for testing PTC (with Phenyl Thio Carbomide strips).
9. Effect of temperatures and detergents on breathing rate in fish. (M.R.- a fish tank, live fishes, detergents,
thermometer)
10. To study the variation in the rate of mitotic cell division in the root tips of onion.
11. Effect of pH on the germination of seeds.(different types of seeds, cotton, Petri dishes).
12. Design and carry out an experiment to investigate the effect of the salinity of water on
the growth of one type of plant.
13. Conduct a survey of pesticides at your local nursery, garden supplies shop or supermarket.
Construct a table in which to record:
a. the names of commercial brands of insecticides
b. the target organisms
c. the active chemical ingredients
d. information given about safety precautions.
Find out how the main ingredients act in each of the pesticides and include them in a
report in your survey.
14. Find out how ants follow a trail, and how and why birds migrate.
15. Find out some of the innate behaviours of babies. Why might they be useful to a baby?
16. Investigate the statement “Too much adrenaline can cause stress-related diseases”.
17. Making and testing toothpaste.
18. Design an experiment to compare the pH of various brands of toothpaste. What does the
pH of toothpaste suggest about tooth decay?
19. What causes pimples? Why are they so difficult to prevent or cure?
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CLASS XISCI
Holiday Homework -2015
20. Imagine you have been asked to find out why so many of the passengers from the Titanic died after 30
minutes in the water, even though they were wearing life jackets. (Hypothesis is heat loss and body
cooling is faster in water than in air).
21. To test the effect of varying salt concentrations on the process of osmosis using an egg
as a model.
22. Study effects of antibiotics on microorganisms.
23. Comparative study of the chlorophyll content in five different species of plants.
24. Study developmental stages of housefly/cockroach
25. Study of locomotion and role of different fins of fish
26. Estimation of vitamin C content in different types of fruits.
27. Study of effect of 2,4-D on translocation process
Q3. Make a PPT of any two chapters from I-Unit test Syllabus of your own choice.
Q4. Do all practicals in practical file.
Q5. OBTA
Maths
1. Let V
2. Write the solution set of the equation
3. State whether each of the following set is finite or infinite :
(i) The set of lines which are parallel to the x-axis .
(ii) The set of letters in the English alphabet .
(iii) The set of numbers which are multiple of 5.
(iv) The set of circles passing through the origin (0,0).
4. Show that A
5. If R is the set of real numbers and I is the set of irrational numbers , then What is R – I ?
6. Let U be the set of all triangles in a plane . If A is the set of all triangles with at least one angle
different from 600, what is AI .
7. Show that the set of letters needed to spell “ CATARACT “ and the set of letters needed to spell
“TRACT” are equal .
8. A college awarded 38 medals in football, 15 in basketball and 20 in cricket . If these medals went to a
total of 58 men and only three men got medals in all the three sports , how many received medals in
exactly two of the three sports ?
9. Let
10. Find the domain of the function f(x)
11. If
.
.
12. Find the domain and the range of the real function f defined by f(x) =
.
13. Convert 400 2l1 into radian measure.
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CLASS XISCI
Holiday Homework -2015
14. If the arcs of the same lengths in two circles subtend angles 650 and 1100 at the centre , find the
ratio of their radii .
15. If
Trigonometric function .
16. Find the value of sin150 .
17. Show that Tan3x . Tan2x.Tanx = Tan3x – Tan2x – Tanx .
18 Find the value of
.
19. Find the solution of
.
20. For every positive integer n , prove that
21. Prove that :
22 . Find the value of
.
23. Make a Project of Properties & Important results of chapter 1 to 5 .
Computer Science
1. Compare & contrast the following:
a) Free & open source software
b) Proprietory software & free software
c) Freeware & shareware.
2. Draw a diagram of computer components connected via buses. Also explain its working with
example?
3. Vicky singh is a builder who employs 4 other people.1 person sits in & works from a small office
and the other 3 work from different buildings sites.Vicky has bought desktop computer for the office
worker and for other workers he is contemplating the idea of banking tablets or smart phones. why or
why not might a smartphone be suitable for them?
4. Define Virtual storage ?
5. How is demand paging done in memory?
6. Differentiate between the segmentation & paging?
Physical Education
1. Prepare a project file on Badminton
2. Revise all syllabus of I Unit Test
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