std : xii (science) holiday homework - science.pdf · q.5 read at least one of the books given...

GDGIS(STD XII HOLIDAY HOMEWORK)

STD : XII (SCIENCE)

HOLIDAY HOMEWORK G D GOENKA INTERNATIONAL SCHOOL

SURAT


Dear Parents,

Not all classrooms have four walls, and learning is not confined to the school environment alone.

Indeed, ever since we are born, we learn. Children, apart from learning at school, learn at home

and at all places. Holidays give the children an opportunity to learn at their own and comfortable

pace, with their first and most beloved teachers, their parents.In a bid to assist you in making

this informal learning more organised, useful and enjoyable, we have planned a vacation

homework that will engage your ward in some concrete learning.

These holiday assignments are designed carefully catering to the interests of children.

Depending up on the child’s interest or sometimes on the subject areas of weakness, a variety of

projects are given. The intent is to promote not only academic learning but also activities which

can gradually become hobbies. Interesting assignments are given as holiday homework, to help

them learn without stress.

Time management skills and life skills are the indirect benefits that children gain from the

holiday homework. Here are some tips to make these assignments more meaningful:-

Spend more time with your children during vacation. Your child’s holidays should include

listening to real life stories from you.

Go for daily walks with your children. They have to look around them and realize that

they are not the only owners of this planet and discover the uniqueness in them.

Travel to places or visit your relatives or invite them to your home. This will help them

understand the significance of relationships and the beauty of being together. Let us

make our children experience such moments.

Set aside a time in the morning hours for the homework, so that they work in an

organanised and disciplined manner.

Holiday is a time to relax and rejuvenate, so just be there participating, guiding and helping them

to enjoy their vacation to the fullest.

Happy Vacations!!!


ENGLISH

GUIDELINES :

1. Question numbers 1, 2 and 3 will be done in the notebook.

2. Question number 4 will be done on A3 size paper. ( coloured or white)

3. The A3 sheet must have a quarter inch border.

4. Presentation should be creative.

5. Home work should be submitted on 6th June.

FOR BOOK REVIEW:

1. Cover Page - Title and Writer’s Name

2. Setting

3. Introduction to Characters

4. General Plot Outline

5. The Best Part of the Novel (Landmark Events containing the theme)

6. Message conveyed to readers

7. An alternative ending

8. Critical appreciation

Q-1 Read the following passage and answer the questions below it.

With the fuel crisis looming over the Indian economy that refuses to be ‘wished away, any news

about alternative fuels makes news. The latest finding is by some scientists who claim to have

used sunlight, water, and carbon dioxide to make ‘green ‘jet fuel. The group consists of a

consortium of European scientists who have demonstrated the production of a Jet fuel, using this

form of concentrated solar energy.

The key component of the production process is a high-temperature solar reactor developed by

the group led by Professor Aldo Steinfeld. The first step in this process begins at 1500 Celsius.

This heating up is done using concentrated solar radiation as the Query source. The net result

that follows from this step is the production of a synthesis gas. This gas is basically a mixture of

hydrogen on monoxide. This gas serves as a precursor of liquid hydrocarbon fuels. Before

launching their product into the public domain, Professor Steinfeld and his team have tested their

fuel by making it perform 240 consecutive cycles. The yield from these cyclic exercises they claim

has led to the production of 750 litres of syngas which was then shipped in a pressurized

container, from Zurich where it was produced, to Amsterdam. A Shell research centre in the city

then converted the solar syngas into kerosene using an established method.


With the experiment proving successful one would suppose that the next step would be a trial run

on aircraft. But instead, Steinfeld and his team are not letting their product leave the laboratories.

The next phase of their research includes an attempt to optimize solar reactor technology to

enable them to produce their energy source efficiently. It requires that the enhanced heat transfer

and fast reaction kinetics are maximized to enable the solar-to-energy conversion work with

efficiency.

1.1 Questions:

(a) What is the alternative fuel produced by Dr Aldo Steinfeld and his team?

(b) What steps have the team taken before launching their product publicly?

(c) Why is the product not let out of laboratories?

(d)How do they plan to eliminate the current second stage of the production?

1.2 Choose the correct option

1. The word ‘Consortium’ used in the passage means:

(i) a concert (ii) a gathering of likeminded people

(iii) a little page boy (iv) a boy following a marriage party

2. The term ‘Precursor’ denotes a:

(i) deadly curse (ii) the moment before the curse

(iii) an event that precedes the main one (iv) destiny

3. When a thing is said to ’Optimize’, it means

(i) it is grown in size. (ii) it is utilized to its full capacity

(iii) it is issued by optical company (iv) another name for spectacles

4. The term ‘Eliminate’ means:

(i) to completely sideline or remove something (ii) to endsomething in stages

(iii) to minimize to its full capacity (iv) to increase something to the maximum

Q.2 Read the passage given below :

In a very short period of time the internet has had a profound impact on the way we live. Since the

Internet was made operational in 1983, it has lowered both the costs of communication and the

barriers to creative expression. It has challenged old business models and enabled new ones. It has

provided access to information on a scale never before achievable.

It succeeded because we designed it to be flexible and open. These two features have allowed it to

accommodate innovation without massive changes to its infrastructure. An open, borderless and


standardized platform means that barriers to entry are low, competition is high, interoperability is

assured and innovation is rapid.

The beauty of an open platform is that there are no gatekeepers. For centuries, access to and

creation of information was controlled by the few. The internet has changed that --and is rapidly

becoming the platform for everyone, by everyone.

Of course, it still has a way to go. Today there are only about 2.3 billion internet users, representing

roughly 30% of the world's population. Much of the information that they can access online is in

English, but this is changing rapidly.

The technological progress of the internet has also set social change in motion. As with other

enabling inventions before it, from the telegraph to television, some will worry about the effects of

broader access to information -- the printing press and the rise in literacy that it effected were, after

all, long seen as destabilizing. Similar concerns about the internet are occasionally raised, but ifwe

take a long view, I’m confident that its benefits far outweigh the discomforts of learning to integrate it

into our lives. The internet and the world wide web are what they are because literally millions of

people have made it so. It is a grand collaboration.

It would be foolish not to acknowledge that the openness of the internet has had a price. Security is

an increasingly important issue and cannot be ignored. If there is an area of vital research and

development for the internet, this is one of them. I am increasingly confident, however, that

techniques and practices exist to make the internet safer and more secure while retaining we take a

long view, I’m confident that its benefits far outweigh the discomforts of learning to integrate it into our

lives. The internet and the world wide web are what they are because literally millions of people have

made it so. It is a grand collaboration. It would be foolish not to acknowledge that the openness of the

internet has had a price. Security is an increasingly important issue and cannot be ignored. If there is

an area of vital research and development for the internet, this is one of them. I am increasingly

confident, however, that techniques and practices exist to make the internet safer and more secure

while retaining its essentially open quality.

After working on the internet and its predecessors for over four decades, I'm more optimistic about its

promise than I have ever been. We are all free to innovate on the net every day. The internet is a tool

of the people, built by the people for the people and it must stay that way.

(a) On the basis of your reading of the above passage make notes on it using recognizable

abbreviations (minimum four) wherever necessary. Use a format you consider appropriate. Supply a

suitable title.


(b) Write a summary of the passage in about 80 words.

Q.3 Write an article on “India 2030”.

Q.4 Prepare a poster on A3 size paper on “Blood Donation”.

Q.5 Read at least one of the books given below and prepare the book review to be told in the class.

a. Ignited Minds - A.P.J. Abdul Kalam

b. Steve Jobs – Walter Isaacson

c. Long walk to freedom – Nelson Mandela

d. Playing it my way – Sachin Tendulkar

MATHEMATICS

GUIDELINES:

Solve the worksheet in loose sheets, leaving margins on both sides.

Time your sessions (setting the maximum time limit of 3 hours for the whole worksheet).

Write complete solutions, with formula used, necessary steps etc. Give your best

presentation.

Home work should be submitted on 6th June.

SET A

1. If 𝑎𝑜𝑏 denotes the larger of ‘a’ and ‘b’ and if 𝑎𝑜𝑏 = (𝑎 ∗ 𝑏) + 3, then write the value of (5) o (10),

where ∗ and o are binary operations.

2. If A is a 3 X 3 invertible matrix, then what will be the value of k, if 𝑑𝑒𝑡(𝐴−1) = (det 𝐴)𝑘?

3. Find whether the function 𝑓: 𝑍 → 𝑍 defined by 𝑓(𝑥) = 𝑥2 + 5, ∀𝑥 ∈ 𝑍 is one-one or not.

4. Evaluate:cos−1(cos 680°).

5. If cos( tan−1 𝑥) = sin (cot−1 3

4) , find the value of x.

6. If the matrix 𝐴 = [0 𝑎 −32 0 −1𝑏 1 0

] is a skew symmetric matrix, find the values of ‘a’ and ‘b’.

7. Find the value of tan−1 √3 − cot−1(−√3).

8. Write the value of tan−1 [2𝑠𝑖𝑛 (2 cos−1 √3

2)].

9. Simplify: tan−1 (1+cos 𝑥

sin 𝑥).

10. If 𝐴 = [1 0

−1 7], then find k such that 𝐴2 − 8𝐴 + 𝑘𝐼 = 𝑂.


11. Given 𝐴 = [2 −3

−4 7], compute 𝐴−1 and show that 2𝐴−1 = 9𝐼 − 𝐴.

12. Prove that: 3 sin−1 𝑥 = sin−1(3𝑥 − 4𝑥3), 𝑥 ∈ [−1

2,

1

2].

13. Express the matrix [3 3 −1

−2 −2 1−4 −5 2

] as the sum of a symmetric and a skew symmetric matrices.

14. Using properties of determinants, prove that

|1 1 1 + 3𝑥

1 + 3𝑦 1 11 1 + 3𝑧 1

| = 9(3𝑥𝑦𝑧 + 𝑥𝑦 + 𝑦𝑧 + 𝑧𝑥)

15. Let 𝐴 = {𝑥 ∈ 𝑍: 0 ≤ 𝑥 ≤ 12}. Show that 𝑅 = {(𝑎, 𝑏): 𝑎, 𝑏 ∈ 𝐴, |𝑎 −

𝑏|𝑖𝑠 𝑑𝑖𝑣𝑖𝑠𝑖𝑏𝑙𝑒 𝑏𝑦 4} is an equivalence relation. Find the set of all elements related to 1. Also

write equivalence class [2].

16. Show that the function 𝑓: 𝑅 → 𝑅 defined by 𝑓(𝑥) =𝑥

𝑥2+1, ∀𝑥 ∈ 𝑅 is neither one-one nor onto.

Also, if 𝑔: 𝑅 → 𝑅 is defined as 𝑔(𝑥) = 2𝑥 − 1, 𝑓𝑖𝑛𝑑𝑓𝑜𝑔(𝑥).

17. If 𝐴 = [2 −3 53 2 −41 1 −2

], find 𝐴−1. Use it to solve the system of equations

2𝑥 − 3𝑦 + 5𝑧 = 11

3𝑥 + 2𝑦 − 4𝑧 = −5

𝑥 + 𝑦 − 2𝑧 = −3.

18. Using elementary row transformations, find the inverse of the matrix 𝐴 = [1 2 32 5 7

−2 −4 −5].

19. Find a matrix A such that [2 −11 0

−3 4] 𝐴 = [

−1 −81 −29 22

].

20. The management committee of a resident colony decided to award some of its members (say x) for

honesty, some (say y) for helping others and some others (say z) for supervising the workers to

keep the colony neat and clean. The sum of all the awardees is 12. Three times the sum of

awardees for helpfulness and supervision added to two times the number of awardees for honesty

is 33. If the sum of number of awardees for honesty and supervision is twice the number of

awardees for helping others, using matrix method, find the number of awardees of each category.

Write two more values for which you think the awards should be given. [VBQ]

21. Consider 𝑓: 𝑅+ → [−9, ∞) given by 𝑓(𝑥) = 5𝑥2 + 6𝑥 − 9. Prove that f is invertible with

𝑓−1(y)= (√54+5𝑦−3

5), where 𝑅+is the set of all non-negative real numbers.


22. Using properties of determinants, prove that |1 𝑥 𝑥2

𝑥2 1 𝑥𝑥 𝑥2 1

| = (1 − 𝑥3)2.

23. If 𝑓: 𝑅 → 𝑅𝑎𝑛𝑑𝑔: 𝑅 → 𝑅 are defined by 𝑓(𝑥) = 𝑥2 + 3𝑥 + 2 and 𝑔(𝑥) = 2𝑥 − 3, find (a)

𝑓𝑜𝑔 (b)𝑔𝑜𝑓.

24. Let * be the binary operation on N defined by 𝑎 ∗ 𝑏 = 𝐿𝐶𝑀(𝑎, 𝑏), ∀𝑎, 𝑏 ∈ 𝑁. Find 20 ∗ 16. Is ∗

(a) commutative (b) associative?

25. Let 𝐴 = 𝑁 × 𝑁𝑎𝑛𝑑 ∗ be a binary operation on A defined by (a, b)∗ (𝑐, 𝑑) = (𝑎 + 𝑐, 𝑏 + 𝑑).

Show that ∗ is commutative and associative. Also find the identity element for ∗if any.

SET B

1. If 𝑦 =1

1+𝑥𝑎−𝑏+𝑥𝑐−𝑏+

1

1+𝑥𝑏−𝑐+𝑥𝑎−𝑐+

1

1+𝑥𝑏−𝑐+𝑥𝑐−𝑎, then find

𝑑𝑦

𝑑𝑥.

2. 𝑰𝒇𝒇(𝒙) = 𝒙 − 𝒙𝟐 + 𝒙𝟑 − 𝒙𝟒 + ⋯ . . 𝒕𝒐∞𝒇𝒐𝒓|𝒙| < 1, 𝑡ℎ𝑒𝑛𝑓𝑖𝑛𝑑𝑡ℎ𝑒𝑣𝑎𝑙𝑢𝑒𝑜𝑓𝒇−𝟏(𝒙).

3. If the function 𝑓: [1, ∞) → [1, ∞) defined by f(x)= 2𝑥(𝑥−1) is invertible, find 𝑓−1(𝑥).

4. If tan−1 𝑥 − tan−1 𝑦 =𝜋

4, 𝑤ℎ𝑒𝑟𝑒𝑥𝑦 < 1, then find the value of x-y-xy.

5. For the matrices A and B, such that AB=BA, if A = [4 0

2𝑘 5𝑘] 𝑎𝑛𝑑𝐵 = [

𝑘 𝑜3 −1

].Then show that,

2k2 +17k – 12=0.

6. If 2 [3 45 𝑥

] + [1 𝑦0 1

] = [7 0

10 5], then find (x-y).

7. Prove that: 𝑡𝑎𝑛 {𝜋

4 +

1

2cos−1 𝑎

𝑏} + 𝑡𝑎𝑛 {

𝜋

4−

1

2cos−1 𝑎

𝑏} =

2𝑏

𝑎

8. Using properties of determinants prove that: |

𝑥 𝑥 + 𝑦 𝑥 + 2𝑦𝑥 + 2𝑦 𝑥 𝑥 + 𝑦𝑥 + 𝑦 𝑥 + 2𝑦 𝑥

| = 9𝑦2(𝑥 + 𝑦)

9. Find the real solutions of the equation: tan−1 (1−𝑥

1+𝑥) =

1

2tan−1 𝑥, 𝑥 > 0.

10. Find the value of:𝑡𝑎𝑛 (cos−1 3

5+

𝜋

4).

11. If |𝑎 𝑏 − 𝑦 𝑐 − 𝑧

𝑎 − 𝑥 𝑏 𝑐 − 𝑧𝑎 − 𝑥 𝑏 − 𝑦 𝑐

| = 0, then using properties of determinants, find the value of 𝑎

𝑥+

𝑏

𝑦+

𝑐

𝑧, 𝑤ℎ𝑒𝑟𝑒𝑥, 𝑦, 𝑧 ≠ 0.

12. Discuss the commutativity and associativity of the binary operation ‘*’ defined on 𝐴 = 𝑄 − {1} by

the rule𝑎 ∗ 𝑏 = 𝑎 − 𝑏 + 𝑎𝑏𝑓𝑜𝑟𝑎𝑙𝑙𝑎, 𝑏 ∈ 𝐴. Also, find the identity element of * in A and hence

find the invertible elements of A.


13. Use product [1 −1 20 2 −33 −2 4

] [−2 0 19 2 −36 1 −2

] to solve the system of equations

𝑥 + 3𝑧 = 9, −𝑥 + 2𝑦 − 2𝑧 = 4, 2𝑥 − 3𝑦 + 4𝑧 = −3.

14. Let 𝐴 = (2 −13 4

) , 𝐵 = (5 27 4

) , 𝐶 = (2 53 8

), find a matrix D such that 𝐶𝐷 − 𝐴𝐵 = 0.

15. The management committee of a resident colony decided to award some of its members (say x) for

honesty, some (say y) for helping others and some others (say z) for supervising the workers to

keep the colony neat and clean. The sum of all the awardees is 12. Three times the sum of

awardees for helpfulness and supervision added to two times the number of awardees for honesty

is 33. If the sum of number of awardees for honesty and supervision is twice the number of

awardees for helping others, using matrix method, find the number of awardees of each category.

Write two more values for which you think the awards should be given. [VBQ]

16. What is the principal value of cos−1 (cos2𝜋

3) + sin−1 (sin

2𝜋

3) ?

17. Prove that: tan−1 (𝑚

𝑛) − tan−1 (

𝑚−𝑛

𝑚+𝑛)=

𝜋

4 .

18. Write into the simplest form: cot−1(√1 + 𝑥2–𝑥)

19. If x, y, z ∈[-1,1] such that sin−1 x + sin−1 y + sin−1 z =3π

2, find the value of

x2006 + y2007 + z2008 −9

x2006+ y2007 + z2008

20. Prove that: tan−1 [√1+𝑥2+√1−𝑥2

√1+𝑥2−√1−𝑥2]=

𝜋

4+

1

2cos−1 𝑥

PHYSICS

GUIDELINES:

1. A4 size sheets to be used for the project.

2. Home work should be submitted on 6th June 2018.

3. Content can be handwritten or printed.

4. The sequence of project should be as followed:

Page1: Cover page (Specimen copy given in soft)

Page2: Certificate (Specimen copy given in soft)

Page3: Acknowledgement (Specimen copy given in soft)

Page4: Index page should contain the following information:


(a) Aim of the project

(b) Introduction

(c) Theory

(d) Conclusion

(e) Bibliography

Page5 onwards: Content

Students have to prepare investigatory projects only on the topic assigned to them.

Roll No. wise topic is mentioned below:

XII - A

Roll No. Name Topic

1. Aditya Harnishbhai Patel

To estimate the charge induced on each one of the two identical styrofoam (or pith) balls suspended in a vertical plane by making use of Coulomb's law.

2. Akashkumar Manojkumar Singh

To design an appropriate logic gate combination for a given truth table.

3. Anant Narayan Shravankumar

Upadhyay

To study various factors on which the internal resistance/EMF of a cell depends.

4. Aniket Santosh Ingle

To investigate the relation between the ratio of (i) output and input voltage and (ii) number of turns in the secondary coil and primary coil of a self designed transformer.

5. Ankith Rs

To investigate the dependence of the angle of deviation on the angle of incidence using a hollow prism filled one by one, with different transparent fluids.

6. Dhyey Chandreshbhai Mehta

To study the earth's magnetic field using a tangent galvanometer.

7. Falguni Dharmendra kumar Parmar

To set up a common base transistor circuit and to study its input and output characteristic and to calculate its current gain.

8. Gautam Manojkumar

Singh

To study the factor on which the self inductance of a coil depends by observing the effect of this coil, when put in series with a resistor/(bulb) in a circuit fed up by an A.C. source of adjustable frequency.

9.

Jay Maheshbhai Patel

To study the variations in current flowing in a circuit containing an LDR because of a variation in (a) the power of the incandescent lamp, used to 'illuminate' the LDR (keeping all the lamps at a fixed distance). (b) the distance of a incandescent lamp (of fixed power) used to 'illuminate' the LDR.

10. Jayni Vijay Chauhan

To construct a switch using a transistor and to draw the graph between the input and output voltage and mark the cut-off, saturation and active regions.


11. Kartavya Mukeshbhai

Shiyal

To find the refractive indices of (a) water (b) oil (transparent) using a plane mirror, an equi convex lens (made from a glass of known refractive index) and an adjustable object needle.

12. Mansi Yogeshwar More


13. MdAmmar Mirza Manzoor Alam


14. Monarkkumar Vinodkumar Patel


15. Neil Singh Sekhon


16. Parth Suresh Ahir


17. Pawan Abhimanyu Chaurasiya


18. Raghavendra Rajvant Singh


19.

Rajat Vishnu Chopade


20.

Rishabh SantoshJaiswal


21. SaarthVikramJhaveri


22. Shubham Gyanchandra

Gupta


23. Umang

BalubhaiSuhagiya


24. Uttamsingh UpendraVikram Singh


25. Yash Ajeet Singh


26. Yash Maheshbhai

Meghnathi



XII - B

Roll No. Name Topic

1. Aashish Lalit Agarwal


2. Ajitika Ajeet Singh


3. Amansingh Devendrasingh Rawat


4.

Amish Ranjeet Gupta


5. Aryan Pankajkumar Gupta


6. Dhwanil Anand Patel


7. Dineshsingh Sawaisingh

Rajpurohit


8. Divyeshwari Pradipsinh

Vansadia


9.

Jeet Siddharth Undaviya


10. Jimmy Maheshbhai Patel


11.

Mayank Ganeshprasad Tiwari


12. Miit Chandresh Dholakia


13. Mridul Manish Tulsyan


14. Muskan Smit Shah


15. Navneetkumar Santosh To investigate the relation between the ratio of (i)


Vishwakarma output and input voltage and (ii) number of turns in the secondary coil and primary coil of a self designed transformer.

16. Nikhil Anil Agrawal


17. Pankajkumar Ramjanam Prajapati


18. Parth Bharatbhai Korat


19.

Parth Dilipkumar Panchal


20.

Radhika Alok Agrawal


21. Riddhi Chetanbhai Shah


22.

Samarth Kamleshkumar Patel


23. Samyak Ravi Jain


24. Sanketh Jitendra Chapaneri


25. Tanishq Sanjeev Kandoi


26.

Ved Hasmukh Patel


27. Vidhi Kiritbhai Parikh


28. Yash NileshkumarJariwala



XII - C

Roll No. Name Topic

1. Aditya Yogesh Mishra


2. Akanksha KundanNegi


3. Ansh Parthiv Kapadia


4.

Divy Sachin Arora


5. Drishti Lalit Kotak


6. Dungarsinh Meghrajsinh Rajpurohit


7. Gaurav Gajanan Sakhare


8.

Janvi Ashokbhai Sondagar


9.

Janvi Hitesh Goti


10. Lubdha Ganesh Patil


11. Nirbhaykumar Dinubhai

Bamanya


12. Nit Tarunbhai Patel


13. Prachi Kamlesh Bhatt


14. Princy Ashwin Patel


15. Purvaja Dinesh Mande

To investigate the relation between the ratio of (i) output and input voltage and (ii) number of turns in the


CHEMISTRY

GUIDELINES:










(b) Introduction

secondary coil and primary coil of a self designed transformer.

16. Sakshi Rakesh Mishra


17. Shreya Mukesh Dungarani


18. Shruti Bhupendrasingh Parihar


19.

Shruti Sohan Dadhich


20.

Swetaben Jitubhai Chaudhari


21. Yashvi Nalin Pansuria


22.

Zeel Dharmendra Gandhi



(c) Theory

(d) Conclusion

(e) Bibliography




XII - A

Roll No. Name Topic

1. Aditya Harnishbhai Patel To dye cotton and woollen clothes with malachite green.

2. Akashkumar Manojkumar Singh

To analyse different tooth paste for the analysis of ions

3. Anant Narayan Shravankumar Upadhyay

To do a comparative study of the effectiveness of different commercially available antacids.

4. Aniket Santosh Ingle To compare the rates of evaporation of different liquids.

5. Ankith Rs

To study the effects of impurities on the freezing and boiling points.

6. Dhyey Chandreshbhai Mehta

To compare foaming capacity of different soaps

7. Falguni DharmendrakumarParmar

Study of effect of potassium Bisulphate as food preservative under various conditions

8. Gautam Manojkumar Singh Estimation of Vitamin C in fruits and vegetables

9. Jay Maheshbhai Patel

Study of common food adulterants in fat , oil , butter, sugar, turmeric powder,chilli powder and pepper

10. Jayni Vijay Chauhan To dye cotton and woollen clothes with malachite green.

11. Kartavya Mukeshbhai Shiyal


12. MansiYogeshwar More


13. MdAmmar Mirza Manzoor Alam

To compare the rates of evaporation of different liquids.

14. Monarkkumar Vinodkumar Patel


15. Neil Singh Sekhon To compare foaming capacity of different soaps

16. Parth Suresh Ahir


17. Pawan Abhimanyu Chaurasiya

Estimation of Vitamin C in fruits and vegetables

18. Raghavendra Rajvant Singh


19. Rajat Vishnu Chopade To dye cotton and woollen clothes with malachite green.

20. Rishabh SantoshJaiswal To analyse different tooth paste for the analysis of ions


21. SaarthVikramJhaveri


22. Shubham Gyanchandra Gupta


23. Umang BalubhaiSuhagiya


24. Uttamsingh UpendraVikram Singh


25. Yash Ajeet Singh


26. Yash Maheshbhai Meghnathi


XII - B

Roll No. Name Topic

1. Aashish Lalit Agarwal To dye cotton and woollen clothes with malachite green.

2. Ajitika Ajeet Singh To analyse different tooth paste for the analysis of ions

3. Amansingh Devendrasingh Rawat


4. Amish Ranjeet Gupta To compare the rates of evaporation of different liquids.

5. Aryan Pankajkumar Gupta


6. Dhwanil Anand Patel To compare foaming capacity of different soaps

7. Dineshsingh Sawaisingh Rajpurohit


8. Divyeshwari Pradipsinh Vansadia


9. Jeet Siddharth Undaviya


10. Jimmy Maheshbhai Patel To dye cotton and woollen clothes with malachite green.

11. Mayank Ganeshprasad Tiwari


12. Miit Chandresh Dholakia


13. Mridul Manish Tulsyan To compare the rates of evaporation of different liquids.

14. Muskan Smit Shah


15. Navneetkumar Santosh Vishwakarma


16. Nikhil Anil Agrawal


17. Pankajkumar Ramjanam Prajapati


18. Parth Bharatbhai Korat


19. Parth Dilipkumar Panchal To dye cotton and woollen clothes with malachite green.


20. Radhika Alok Agrawal To analyse different tooth paste for the analysis of ions

21. Riddhi Chetanbhai Shah


22. Samarth Kamleshkumar Patel


23. Samyak Ravi Jain


24. Sanketh Jitendra Chapaneri To compare foaming capacity of different soaps

25. Tanishq Sanjeev Kandoi


26. Ved Hasmukh Patel Estimation of Vitamin C in fruits and vegetables

27. Vidhi Kiritbhai Parikh


28. Yash NileshkumarJariwala To dye cotton and woollen clothes with malachite green.

XII - C

Roll No. Name Topic

1. Aditya Yogesh Mishra To dye cotton and woollen clothes with malachite green.

2. Akanksha KundanNegi To analyse different tooth paste for the analysis of ions

3. Ansh Parthiv Kapadia


4. Divy Sachin Arora To compare the rates of evaporation of different liquids.

5. Drishti Lalit Kotak


6. Dungarsinh Meghrajsinh Rajpurohit


7. Gaurav Gajanan Sakhare


8. Janvi Ashokbhai Sondagar


9. Janvi Hitesh Goti


10. Lubdha Ganesh Patil To dye cotton and woollen clothes with malachite green.

11. Nirbhaykumar Dinubhai Bamanya


12. Nit Tarunbhai Patel


13. Prachi Kamlesh Bhatt To compare the rates of evaporation of different liquids.

14. Princy Ashwin Patel


15. Purvaja Dinesh Mande To compare foaming capacity of different soaps

16. Sakshi Rakesh Mishra


17. Shreya Mukesh Dungarani



18. Shruti Bhupendrasingh Parihar


19. Shruti Sohan Dadhich To dye cotton and woollen clothes with malachite green.

20. Swetaben Jitubhai Chaudhari


21. Yashvi Nalin Pansuria


22. Zeel Dharmendra Gandhi


BIOLOGY

GUIDELINES:



3. Content should bestrictly handwritten.







(b) Introduction

(c) Theory

(d) Conclusion

(e) Bibliography




Roll No. Name Topic

1 Aaditya Mishra Human evolution

2 Anshkapadia HIV (AIDS)

3 AkanshaNegi DNA

4 DivyArora Cancer and its types

5 DungarsinghRajpurohit Biodiversity and its conservation


6 DrishtiKotak Population explosion and contraceptives.

7 Gaurav Global warming

8 Janvisondager Drug Abuse

9 JanviGoti Biotechnology and its applications

10 Lubdhapatil Silk web technology

11 Nirbhay STD’S (Sexually transmitted diseases)

12 Nit patel In Vitro fertilization(IVF)

13 Prachi Bhatt SCP (Single Cell Protein)

14 PurvajaMande Diabetes

15 Princy Patel Microbes in human welfare

16 ShrutiDadich Biofertilizers

17 ShreyaDungarani Biogas-“The Fuel of Future”

18 ShrutiParihar Blood and its components

19 ShwetaChaudhary Malaria-Causes and prevention

20 Zeel Gandhi Sewage treatment plant

21 YashviPansuria Mutations

22 Sakshi Mishra Water pollution

PHYSICAL EDUCATION

GUIDELINES:

1. Homework should be completed neatly in A4 paper.

2. The homework should be submitted on 6th June 2018 positively.

1. Prepare and calculate according to the information given below :-

a) League fixture of 84 teams –

- Find out the max no of matches

- Find out the min no of matches

b) Knock out fixture of 33 teams (Basketball)including opening and closing ceremony,along with

date time and venue (3 days tournment)

c) League cum knock out matches of 41 teams , knockout will start from quarter final.

2. Study and prepare a brief report on fixture of Cricket IPL 2018

INFORMATICS PRACTICES

GUIDELINES:

1. Homework should be completed neatly in A4 paper.

2. The homework should be submitted on 6th June 2018 positively.


1. Give any two examples for the following categories of software:

A. Open Source software

B. Freeware

C. Free software

D. Proprietary software

E. Shareware

2. Write java coding using database connectivity with insert record, delete record, show record and

update record.

a. Library Management system ( Bookid, BookName, Author, Price, publisher, quantity,

date_of_purchase);

b. Take the screen shot of all frames.

c. Take the screen shot of all coding in sequencewise.

d. Make all frame connectivity.

e. Show your creativity with different methods and event.

HOME SCIENCE

GUIDELINES:


2. Home work should be submitted on 6th June.







(f) Aim of the project

(g) Introduction

(h) Theory

(i) Conclusion

(j) Bibliography



Students have to prepare investigatory projects only on the topic given to them.

1. Human development: Life span approach (Part II)

Activities:

1. Identify the problems adjustment of adolscents with help of a tool (group activity) and make a

report.

2. Spend a day with an aged person and observe the needs and problems. Write a report.

3. List and discuss atleast 4 areas of agreement disgreement of self with:-

(a) mother (b) father (c) teacher

(d) siblings (e) friends

2. Money management and consumer education

Activities:

1. Collect and fill savings account form in post office and Bank.

2. Fill up the following forms and paste in file: withdrawal slip, deposit slip , draft slip and cheque

( bearer or A/C payee).

3. Collect labels of any three products and compare them with mandatory requirements.

4. Prepare one label each of any three items being bearing ISI, FPO, Agmark.

3. Apparels: Designing, Selection and Care:

Activities:

3. Illustrate principle of design or element of art on a paper or cloth and evaluate them.

4. Removal of different types of stains: tea, coffee, curry, grease, blood, lipstick, ball pen.

5. Examine and evaluate readymade garments for their workmanship. (At least 2)

6. Make sample of hemming, back stitch, interlocking and press button, hooks and eyes.

4. Community development and extension

1. Visit any two place( home/ restaurant/ School/ Business Centre, etc.) and observe its measure

for safe drinking water and general conditions of hygiene around it.

std : xii (science) holiday homework - science.pdf · q.5 read at least one of the books given...

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