ST.XAVIER’S SCHOOLS-CHANDIGARH, PANCHKULA, MOHALI, ZIRAKPUR

CLASS-7 ENGLISH WORKSHEET-9

TOPIC- FUTURE TENSE (…continuation)

3. FUTURE PERFECT TENSE

The future perfect tense is used:-

-to show the completion of an action by a certain time in the future

Ex- We hope all the problems will have been solved by the end of the week.

-with time expressions like: by that time, ‘by then’, ‘by next week’ or ‘by the tenth of

next month’ and so on

Ex-The babies will have been given a bath by afternoon.

FORMULAS OF FUTURE PERFECT TENSE IN DIFFERENT KINDS OF SENTENCES

KINDS OF SENTENCES FORMULAS EXAMPLES

AFFIRMATIVE

S+will/shall+have+V3+O He will have played.

NEGATIVE

S+will/shall+not+have+V3+O He will not have played.

INTERROGATIVE

Will/shall+S+have+V3+O? Will he have played?

NEGATIVE

INTERROGATIVE

Will/shall+S+not+have+V3+O? Will he not have played?

SECTIONAL RECAPITULATION

Exercise 1 Fill in the blanks with verbs in the future perfect tense:-

1. We hope that the sky ______ (clear) by the time we set out on our journey.

2. The clown ______ (perform) at the circus before the acrobats come in.

3. The tailor ______ (stitch) her dress by tomorrow.

4. The woodcutter ____ (cut) logs of wood before night sets in.

FUTURE PERFECT CONTINUOUS TENSE

The future perfect progressive tense is used:-

-to denote a continuous action with reference to sometime in future

Ex- He will have been walking on his own by the time the physiotherapist teaches him all the

exercises.

S+will/shall+have+V3+O

S+will/shall+have+been+V1

+ing+O

SECTIONAL RECAPITULATION

Exercise 2 Fill in the blanks with appropriate verbs forms in the future perfect

continuous tense:-

1. They ______ (prepare) for their entrance examinations for one week before they fill

their forms.

2. My friends _____ (watch) a movie before they leave for shopping.

3. The college fest _____ (go) on for many days before the exam schedule is announced.

FINAL RECAPITULATION

TABLE OF FORMS OF FUTURE TENSE

FORMS FORMULAS

SIMPLE

S+will/shall+V1+O

CONTINUOUS

S+will/shall+be+V1+ing+O

PERFECT

S+will/shall+have+V3+O

PERFECT CONTINUOUS

S+will/shall+have+been+V1+ing+O

Exercise 3 Rewrite the following sentences as per the guidelines given in brackets:-

1. Menu will be sitting in meditation for two hours. (future perfect continuous)

2. I will give you my text book by next week. (future perfect)

3. They will pluck flowers before the gardener arrives. (future perfect)

ANSWER KEY OF WORKSHEET 8

Exercise 1 a) will (b) will (c) will (d) shall (e) will

Exercise 2 a) will be leaving (b) will be repairing (c) will be waiting (d) will be getting

KINDS OF

SENTENCES

FORMULAS EXAMPLES

AFFIRMATIVE

S+will/shall+have+been+V1+ing+O He will have been

reading since 8

o’clock.

NEGATIVE

S+will/shall+not+have+been+V1+ing+O He will not have

been reading since

8 o’clock.

INTERROGATIVE

Will/shall+S+have+been+V1+ing+O? Will he have been

reading since 8

o’clock?

NEGATIVE

INTERROGATIVE

Will/shall+S+not+have+been+V1+ing+O? Will he not have

been reading since

8 o’clock?

FORMULAS OF FUTURE PERFECT CONTINUOUS TENSE IN

DIFFERENT KINDS OF SENTENCES

The answer key of Worksheet -9 will be attached with Worksheet -10

CLASS-7 PUNJABI WORKSHEET

CLASS-7 SANSKRIT WORKSHEET (FOR PANCHKULA BRANCH ONLY)

CLASS-7 PUNJABI WORKSHEET (MOHALI & ZIRAKPUR BRANCHES ONLY)

Class 7 CIVICS WORKSHEET

TOPIC – CONSTITUTION OF INDIA

PART 1

What is a Constitution?

In earlier times, most countries were governed by powerful rulers or kings. These

rulers ruled according to their personal wishes .The people were subjected to laws

that could change with each successive ruler. A country today follows a set of laws

and principles that clearly state the rights and duties of its citizens as well as the

powers of the government. This set of rules and regulations, rights and duties is called

constitution. The constitution of independent India came into force on 26 January

1950.On this day ,India became a democratic republic.

The constitution of India was framed by a body called the Constituent Assembly,

whose members were all representatives of the Indian people.

CONSTITUENT ASSEMBLY AND THE FRAMING OF THE INDIAN

CONSTITUTITION

In 1945, the British government, which decided to grant independence to India, sent a

Cabinet Mission comprising three British cabinet ministers to study the issue of Indian

independence. The Cabinet Mission recommended the formation of a constituent

assembly to frame a constitution of India . The elections for the formation of the

constituent assembly were held in July 1946, in which 389 members were elected .

They were not elected directly by the people but by their representatives in the

provincial legislative assembly.

The constituent assembly consisted of eminent leaders as well as legal experts. Its

members included Jawaharlal Nehru , Dr. Rajendra Prasad, Sardar Patel , Maulana

Azad , S P Mukherjee , Sardar Baldev Singh, Dr S Radhakrishnan, Dr B R Ambedkar,

Alladi Krishnaswami Aiyar, K M Munshi and others. Frank Anthony and Dr H P

Modi represented the Anglo-Indian and the Parsi communities .Women members

included Sarojini Naidu and Vijaya Lakshmi Pandit.

The constituent assembly’s first session was held on 9 December 1946. In its

second sitting ,the assembly elected Dr Rajendra Prasad as its chairman. The meetings

of the assembly were boycotted by the Muslim League, which was demanding a

separate constituent assembly for Pakistan. The British conceded to this demand in

July 1947, which paved the way for the creation of Pakistan.

B R Ambedkar

The architect of the Indian Constitution , Bhimrao Ramji Ambedkar (1891-1956), was

a great social reformer who fought for ending social discrimination against the

‘untouchables’(Dalits) in India. He also campaigned for the cause of women and for

the working class.

Young Ambedkar faced a lot of discrimination because of his caste. Dalit children ,

including Ambedkar, were not allowed to sit inside the classroom; the teachers did not

help them ; they had to sit on sacks and carry them back; when they felt thirsty the

school peon poured water from above them and they had to drink with their cupped

hands. “No peon, no water” , wrote Ambedkar in his memoirs. Though as a student he

was diligent, earning doctorates in law, economics and political science. He became

the first law minister of independent India. Dr Ambedkar was awarded the Bharat

Ratna , India’s highest civilian award, in 1990. He is fondly remembered as Baba

Saheb.

Drafting Committee

The principle of the proposed constitution were outlined by various committees of the

Constituent Assembly. The assembly also appointed an eight-member Drafting

Committee under the chairmanship of Dr B R Ambedkar. The drafting committee

made several alterations and additions and finally presented the draft constitution in

February 1948. On 26 November 1949, the constitution was signed by the chairman of

the assembly . Its provisions relating to citizenship, elections and provincial

parliament were given immediate effect. The rest of the constitution came into force

on 26 January 1950. The Constitution refers to this date as the ‘date of its

commencement’.

The constituent assembly spent nearly three years and a sum of Rs 6.4 crore in

the drafting of the constitution. The assembly was not directly elected body, its

sessions were open to public where they were free to express their opinions and

reactions through the press.

Birth of the Indian Republic

We celebrate 26 January as Republic Day. It was on this day in 1950 that the Indian

constitution came into effect and India became a republic. This date was chosen for

historic reasons. In its Lahore session in December 1929, the Indian National

Congress had declared 26 January as the day of ‘Poorna Swaraj’ or complete

independence.

Exercises

A.Answer the following questions in one or two sentences.

1.What is the importance of a constitution for a country?

2.What is meant by a constitution? Who framed the Indian constitution?

3.What was the role of the drafting committee in the framing of the constitution?

4.Why was 26 January selected as the date of the commencement of the constitution?

5.How did the Indian public participate in the preparation of the constitution?

6.How did the Constituent Assembly lose some of its members?

7. What was the main contribution of Dr .B R Ambedkar to independent India?

B.Answer the following questions.

1.How did the Constituent Assembly of India come into being?

2.Describe the composition of the Constituent Assembly.

C. Fill in the blanks

1.India became a ……………. on 26 January, when the constitution came into effect.

2.The …………….. recommended the formation of a constituent assembly in 1946.

3.The constitution of India was framed by a body called the …………….

4.The chairman of the Drafting Committee was…………….

5.One of the women members of the Constituent Assembly was ……………

D. Match the columns

1.Bhimrao Ramji Ambedkar a. indirectly elected

2.9 December 1946 b. the constitution signed

3Dr H P Modi c. Women members of the

Constituent Assembly

4.26 November 1949 d .the first session of the

Constituent Assembly

5.Declaration of ‘Poorna Swaraj’ e .Baba Saheb

6.Constituent Assembly members f. Lahore session,,December

1929

7.Sarojini Naidu and Vijaya Lakshmi Pandit g. representative of the Parsi

Community in the constituent

Assembly

CLASS – VII

ANSWER KEY OF S.ST WORKSHEET – 8 (GEOGRAPHY)

EXERCISE

A. Fill in the blanks :

1. A Six’s Maximum and Minimum thermometer is used for measuring

maximum temperature and minimum temperature of the day.

2. What is measured with the help of wet and dry bulb thermometer?

Humidity is measured with the help of wet and dry bulb thermometer.

3. What is measured with the help of an anemometer?

Wind velocity is measured with the help of an anemometer.

4. In Fahrenheit scale the freezing and the boiling points are

32°, 212° .

B. Answer the following questions:

Q1. Define a) Isohyet b) Humidity c) Precipitation d) Rain

A 1- a) Isohyet – An isohyet is a line on a map which passes through all the places

having the same rainfall.

b) Humidity – The amount of water vapours present in the air is called humidity.

c) Precipitation – The process through which water from the atmosphere falls

down on the Earth is called precipitation.

d) Rain – Precipitation that reaches the ground in liquid form is called rain.

Q2- What are periodic winds?

A2- Periodic winds are those which blow during a particular period of the day or

season of the year.

Q3- Name the instrument which is used to measure velocity of wind.

A3- Velocity or the speed of the wind is measured with the help of an instrument

called anemometer.

Q4-Mention any two forms of precipitation.

A4- Rain and snow are the two forms of precipitation.

Q5- Distinguish between absolute humidity and relative humidity.

A5-

ABSOLUTE HUMIDITY RELATIVE HUMIDITY

1. Absolute humidity is the amount of

water vapour in grams per cubic

metre of air.

2. It is normally expressed in grams

of vapour per cubic metre of air.

1. Relative humidity is the ratio

between the amount of water

vapour present in the air and

the maximum amount that can

be held by the air at a given

temperature.

2. It is expressed in percentage.

Q6. The highest temperature for a day was 44°C whereas the minimum temperature

was 24°C. Calculate daily range of temperature.

A6. Daily range of temperature = Maximum temperature – Minimum

temperature

Maximum temperature = 44°C

Minimum temperature = 24°C

Daily range of temperature = 44°C – 24°C

= 20°C

Daily range of temperature = 20°C

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CLASS – 7 BIOLOGY WORKSHEET 9

TOPIC: ANIMAL TISSUES

Animal Tissues are of various types. They are:

1. Epithelial tissue 2. Connective tissue

3. Muscular tissue 4. Nervous tissue

1. EPITHELIAL TISSUE

NATURE These tissue are arranged end –to-end. Intercellular space is very little.

They may be flat, cuboidal, irregular or columnar in shape.

FUNCTIONS They are also called protective tissue as it acts as a barrier and

protects the body from the foreign invaders.

Covers the external surface of the body with skin.

Also lines the internal organs such as kidney, heart and blood vessels.

There are three basic types of epithelial tissues. Their shape , location , functions

and structure are given in table below

2.CONNECTIVE TISSUE

NATURE AND STRUCTURE

These tissues bind and connect the parts of animal’s body.

They are made up of cells, extracellular fibres and ground substance as a matrix.

It is usually rich in blood supply except for cartilage which has no blood supply.

FUNCTIONS

Binding and support (bone and cartilage)

Protection (bone and cartilage)

Insulation (fat)

Transportation of substances (blood)

BONES

The connective tissues together form dense organs called bones.

FUNCTIONS

Bones create a firm structure in the form of a framework called a skeleton, which

gives definite shape and structure to the human body.

Some bones act as armour and provide protection to the delicate organs like heart,

lungs and brain.

Structure of bone tissue

CARTILAGE

Cartilage is another form of dense connective tissue which plays a very significant role in the human body. It is also very dense in nature but lesser than bone. FUNCTIONS

It fills the gaps between the bones and serves as a cushion to absorb jerks during body movement.

The nose and ears have distinct cartilage based structures, which act as funnels, and help in gathering different fragrances and sound waves.

Structure of cartilage

WORKSHEET

Q.1. Match the following

A B

i) Transport of food from leaves Xylem

ii) Made of dead cells Cartilage

iii) Found in nose and ears Phloem

iv) Conducts water from the roots Dermal tissue

v) Protective tissue in plants Sclerenchyma

Q.2. FILL IN THE BLANKS:

i) The _____________ epithelium tissue is flat in structure.

ii) __________________ tissues form the covering of the body.

iii) ____________ tissue is found between the bones at joints.

iv) Two dense connective tissues are ____________ and ____________.

Q.3. ANSWER THE FOLLOWING:

i) Differentiate between bones and cartilage.

ii) Bones play a very important role in the human body. Give reason.

iii) What are the functions of columnar epithelium?

Q.4. NAME THE TISSUE FOUND IN THE FOLLOWING :

i) Root tip ii) Animal skin iii) Bark of the stem iv) Wall of the heart

v) outer region of ovary vi) Blood

Answer key of Worksheet 8 : Class 7 CHEMISTRY

Q1) a , e , g , i, physical change

b , c , d , f , h , j chemical change.

Q.2) 1. Melting of ice 2. Rusting of iron nail

3. Slaking of lime 4.Dissolution of glucose in water

Q3)1.Physical change: A change in which no new substances are formed and which

can be reversed by reversing the conditions.

2. Chemical change: A change in which new substances are formed and which

can be reversed by reversing the conditions.

3. Reversible change: A change is said to be reversible when opposite change

can be brought about by reversing the conditions.

4. Irreversible change: A change is said to be irreversible when opposite change

can not be brought about by reversing the conditions.

5. Exothermic change :The change in which heat energy is evolved.

6. Endothermic change: The change in which heat energy is absorbed.

Q.4) 1. Water 2. Irreversible 3. Exothermic

Q.5) 1.True 2. False 3. True

Q.6) Refer to the table given in content.

Q.7) 1. Rusting of iron nail : mass of rusted iron nail is more than original nail.

2. Burning of carbon: mass of carbon decreases and finally carbon vanishes as it

burns.

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CLASS-7 MATHEMATICS CHAPTER-5: SETS

TOPIC: TYPES OF SETS

WORKSHEET-9

DEFINITON

FINITE SET: A set that contains a limited (definite) number of different elements is

called finite set. For example: A = {a, b, c, d, e} is a finite set having five elements

INFINITE SET: A set that contains an unlimited number of different elements is called

an infinite set. For example: The set of natural numbers, N= {1, 2, 3, 4.......}

SINGLETON SET: A set that contains only one element is called a singleton (or unit)

set. For example: {x│x ϵ W, x < 1} having one element

EMPTY SET: A set which does not contain any element is called empty set. It is also

called null (or void) set. For example: {prime numbers between 7 and 11}

UNIVERSAL SET: A set that contains all the elements under consideration in a given

problem is called universal set. It is denoted by U and ξ

For example: V = {a, e, i, o, u}, the universal set may be {all letters of English

alphabet}

CARDINAL NUMBER OF A SET

The number of distinct elements in a (finite) set is called its cardinal number. The

cardinal number of a finite set A is denoted by n(A).

Note: Cardinal number of empty set = 0

Cardinal number of singleton set = 1

For example:

(i) B = {x : x ϵ W, x < 7} = { 0, 1, 2, 3, 4, 5, 6} has 7 elements, so n(B) = 7

(ii) P = {letters of QUEEN} = {Q, U, E, N} has 4 distinct elements, so n(P) = 4

EQUAL SETS: Two sets are called equal sets if they have same elements.

For example: If A = {a, b, c} and B = {b, a, c, a, b}, then B = {b, a, c}

implies that A = B

EQUIVALENT SETS: Two (finite) sets are called equivalent sets if they have same

number of elements.

For example: If A = {a, e, i, o, u} and B = {1, 2, 3, 4, 5}, then n(A) = 5 and

n(B) = 5 so A ↔ B. Note, that A ≠ B.

SUBSETS: If A and B be any two sets then A is called subset of B if every element of A

is also element of B. We write it as A⊂B (read as A is a subset of B).

Note: An empty set is a subset of every set.

Every set is a subset of universal set.

For example: If A = {2, 3, 5} and B= {1, 2, 3, 4, 5, 6} then A⊂B. Note that B⊄A.

Example 1

Classify the following sets into empty set, finite set and infinite set in case of finite

sets, mention the cardinal number.

(i) {x : x = 4n, n ∈ I, x < 10}

(ii) {x : x = 5n, n ∈ W, x < 60}

Solution

(i) n ∈ I, ⇒ n = …-3, -2, -1, 0, 1, 2, 3,…

x = 4n ⇒ x = …-12, -8, -4, 0, 4, 8, since x < 10

∴ {……-12, -8, -4, 0, 4, 8}

So this set is infinite set

(ii) n ∈ W ⇒ n = 0, 1, 2, 3, 4, …..

x = 5n ⇒ x = 0, 5, 10, 15, 20………55, since x < 60

∴ {0, 5, 10, 15, 20………55}

So this set is finite set,

Cardinal number = number of elements = 12

Example 2

State whether each of the following statement is true or false for the sets A & B

where

A = {letters of CLOUD} and B = {letters of KOLKATA}

(i) A ⊂ B (ii) B ⊂ A (iii) A ↔ B

Solution:

A = {C, L, O, U, D}, B = {K, O, L, A, T}

n(A) = 5 , n(B) = 5

(i) False (ii) False

(iii) True

Practice Worksheet

1. Classify the following sets into empty set, finite set and infinite set in case of

finite sets, mention the cardinal number.

(i) {all colours of a rainbow}

(ii) {all straight lines drawn in a plane}

(iii) { x : x is a letter in word SUFFICIENT}

(iv) {x : x ∈ N, x is prime factor of 180}

(v) {x : x is a vowel in word WHY}

2. Find the pairs / groups of equal sets from the following sets:

A = {0, 1, 2, 3} B = {x : x2 < 10, x ∈ W}

C = {letters of word FOLLOW} D = {days of a week}

E = {x │ x ∈ W, x < 4} F = {letters of word FLOW}

G = {Monday, Tuesday, …, Sunday} H = {letters of word WOLF}

3. Find the pairs / groups of equivalent sets from the following sets:

E = {x : x ∈ I, x2 < 10} F = {months of a year}

G = {days of a week} H = {x│x = 3n, n ∈ W and n < 12}

I = {all even numbers between 1 and 53} J = {all letters of English

alphabet}

4. In the following, find whether A ⊂ B or B ⊂ A or none of these:

(i) A = {1, 2, 3} B = {2, 3, 3, 3, 1, 3} (ii) A = {2, 4, 6, ….} B = {all natural numbers}

(iii) A = {x│x ∈ I, x2 < 20} B = {0, 1, 2, 3, 4} (iv) A = {letters of KING} B = {letters of QUEEN}

Answer of Worksheet 8

(1) (i) {last three days of a week} (ii) {months of a year whose name begin with a vowel}

(2) (i) {12, 14, 16, …., 48}; {x : x = 2n, n ∈ N and 5 < n < 25} (ii) {1, 2, 3, 4, 6, 9, 12, 18, 36}; {x : x is a factor of 36} (3) (i) { 0, 4, 8, 12, 16} ; {whole numbers which are multiple of 4 less than 20} (ii) {U, L, T, I, M, A}; {letters in word ULTIMATUM} (4) (i) {vowels in the word COMPETITION}

(ii) {x : x is a vowel in the word COMPETITION} (iii) {O, E, I}

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COMPUTER APPLICATIONS CLASS-7 WORKSHEET- 8

CHAPTER: USING LIST, IMAGES AND LINKS

<MARQUEE> TAG

< <MARQUEE> TAG helps in displaying the scrolling text on the web

page.

CHILDREN WE HAVE COMPLETED DIFFERENT TYPES OF LISTS

AND THEIR ATTRIBUTES

PRACTICE THE PROGRAMS

GIVEN ABOVE

ANSWER KEYS OF PREVIOUS WORKSHEET

HTML CODE FOR DISPLAYING A MENU

(UNORDERED, ORDERED LISTS)

HTML CODE OUTPUT

<HTML>

<HEAD>

<TITLE> MENU CARD </TITLE>

</HEAD>

<BODY>

<OL>

<LI>SNACKS

<UL TYPE= “ DISC”>

<LI>PIZZA </LI>

<LI> BURGER</LI>

<LI> CHAT </LI>

<LI> SPRING ROLL</LI>

</UL>

<LI>DESSERTS

<UL TYPE= “ DISC”>

<LI>ICE-CREAMS</LI>

<LI>RASMALLI</LI>

<LI>GULAB JAMUN</LI>

<LI>CAKES</LI>

</UL>

<LI>BEVERAGES

<UL TYPE= “ DISC”>

<LI>STRAWBERRY

SHAKE</LI>

<LI>FRESH LIME WATER</LI>

<LI>MANGO SHAKE</LI>

<LI>BUTTER MILK</LI>

</UL>

</OL>

</BODY>

</HTML>

1. SNACKS

o PIZZA

o BURGER

o CHAT

o SPRING ROLL

2. DESSERTS

o ICE-CREAMS

o RASMALLI

o GULAB JAMUN

o CAKES

3. BEVERAGES

o STRAWBERRY SHAKE

o FRESH LIME WATER

o MANGO SHAKE

o BUTTER MILK

Hope you have practice the programs given last week

******************************************

HTML Code Displaying DEFINITION List

HTML CODE OUTPUT

<HTML>

<HEAD>

<TITLE> DEFINITION OF LISTS</TITLE>

</HEAD>

<BODY>

<DL>

<DT>UNORDERED LIST </DT>

<DD >

An Unordered list is used when the items are not

to be displayed in any particular order.

</DD>

<DT> ORDERED LIST</DT>

<DD>

An ordered list is used to display the list of items in

a specific order.

</DD>

</DL>

</BODY>

</HTML>

UNORDERED LIST

An Unordered list is used when the

items are not to be displayed in any

particular order.

ORDERED LIST

An ordered list is used to display the

list of items in a specific order.

s