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

CLASS- 6

ENGLISH WORKSHEET-10

Past Tense (Perfect and Perfect Continuous)

Past Perfect Tense

The past perfect tense shows an action completed at some point in the past before another

action began.

Example:

The flight had landed when I reached the airport.

Form of Past Perfect Tense

In affirmative sentences, we write: had + past participle form of the verb.

She had left for the day.

In negative sentences, ‘not’ is inserted after the first part of the verb. We write: had + not

+ past participle form of the verb.

The flight had not landed when you reached the airport.

In interrogative sentences, the first part of the verb is put before the subject.

Had the flight landed when you reached the airport?

Short forms may also be used in interrogative sentences.

Why hadn’t he come?

EXERCISE: 1

Rewrite the following sentences in the past perfect tense.

1. The flight___________ when the announcement was made. (land)

2. Sagarika____________ the house when I reached her place. (leave)

3. The compere___________ the arrival of the chief guest before the confusion started.

(announce)

4. The old man___________ in an application for a new telephone connection before he

went on a holiday. (put)

Read the table given here to understand the use of verb ‘sing’ in various forms of past

tense.

Simple Past Tense Past Continuous Tense Past Perfect Tense

I sang. I was singing. I had sung.

You sang. You were singing. You had sung.

We sang. We were singing. We had sung.

She sang. She was singing. She had sung.

They sang. They were singing. They had sung.

Past Perfect Continuous Tense

The past perfect continuous tense is used to report an action or event that occurred before

a certain point in the past, the effects of which are still visible when we refer to past.

The girl had been flying kites since childhood.

The mountaineer had been trying to climb the mountain since last year.

EXERCISE: 2

Read the following sentences carefully and state the tense form of the verbs in bold.

1. The boy walked up the slope.

2. The girls were hurrying back home after school.

3. The domestic help had cooked food by evening last night.

4. The cuckoo flew over the nest.

5. The stranger smiled at the little boy.

6. Boys had carried their bags to school before they left for sight seeing.

7. Grandma had accompanied me to my friend’s house.

EXERCISE: 3

Fill the blanks with the appropriate form of verbs according to the tenses mentioned in the

brackets.

1. The boys _________ (go) on a holiday with their parents when the car got a flat tyre.

(past continuous)

2. The train__________ (arrive) when they reached the station. (past perfect)

3. The policemen__________ (catch) the dacoits. (simple past)

4. My aunt______________ (bake) a cake when I called her up. (past continuous)

5. Radhika_____________ (collect) shells before she went for a swim. ( past perfect)

6. Women at the gate __________ (shout) when the pickpocket was being chased. (past

continuous)

7. Sunil’s family _____________ (live) in Goa till last year. (simple past)

8. The man _____________ (drive) to the hill station before he fell ill. (past perfect)

9. His hard work __________ (bear) fruit and he passed the exams with flying colours.

(simple past)

EXERCISE: 4

Rewrite the following sentences in the negative and interrogative forms.

1. Rohan went to school yesterday.

2. The girls carried their water bottles to school.

3. He went to the park for a walk.

4. The capseller rested under the tree.

5. He knew the definition.

The answer key of worksheet-10 will be uploaded with worksheet-11

ANSWER KEY OF WORKSHEET-9

EXERCISE: 1

Fill in the blanks with the simple past tense form of the verbs given in brackets.

1. began 2. flew

3. spoke 4. rolled

EXERCISE: 2

Rewrite these sentences in the negative and interrogative forms.

1. He did not give an enlightening speech.

Did he give an enlightening speech?

2. My father did not sleep soundly.

Did my father sleep soundly?

3. He did not write a one-act play.

Did he write a one-act play?

4. The men did not enjoy the party.

Did the men enjoy the party?

EXERCISE: 3

Fill in the blanks with the correct form of verbs given in brackets in the past continuous tense.

1. were working 2. were chirping

3. were sleeping 4. were sailing

EXERCISE: 4

Rewrite the following sentences in the negative and interrogative forms.

1. Mona was not writing a letter to her brother.

Was Mona writing a letter to her brother?

2. He was not talking to his friend.

Was he talking to his friend?

3. The girl was not sleeping on the sofa.

Was the girl sleeping on the sofa?

CLASS – 6 S.ST WORKSHEET - 10 (GEOGRAPHY)

CHAPTER-1

Ptolemy -Once the Earth was thought to be the centre of the Universe with the other

celestial objects moving around it. This idea is the Ptolemic view, named after

Claudius Ptolemy, an Egyptian. In The 2nd century A.D, he brought together the

astronomical ideas of the ancient Greek world in his work, the, Almagest. This was

the first book which contained the idea of latitude and longitude.

Claudius Ptolemy

GEOGRAPHICAL FEATURES -

River - A river is a body of flowing water.

Meander - A meander is a winding curve in a river formed as a result

depositional and erosional processes.

Tributaries - A tributary is a smaller river or stream that joins a large

river.

Distributary - It is a river or a stream which flows away from a large river.

Delta - A triangular piece of land that develops at the mouth of a river by the

deposition of sediments.

FOLDING- Folding is a process that produces folds or bends in rock. Folding

is caused by great compressional (sideways) forces acting on layers of rocks in

the earth’s crust.

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As a result of folding certain parts of the rocks are bent upwards while the others

are bent downwards. The up folds in the rocks are called anticlines and down folds

are called synclines.

CONTOUR LINES

Lines of equal value are drawn to show height of places. Such lines which join places

of the same height are called contour lines.

CONVENTIONAL SIGNS AND SYMBOLS -

EXERCISE

(Please refer to S.ST WORKSHEET-2(GEOGRAPHY) AND THIS WORKSHEET

to find answers of the following exercises)

A. ANSWER THE FOLLOWING QUESTIONS IN BRIEF:

1. Define map.

2. Write any three basic elements of a map.

3. Which colour would you use to show the following on a map:

a) Mountains b) Lesser depth of water.

4. What is a compass?

5. A map is not an accurate representation of the earth. Justify.

6. Define scale.

7. What is the difference between a map and a sketch?

8. Name the four cardinal points.

9. What is cartography?

10. Who was Ptolemy?

11. What are conventional signs?

12. What is the importance of grid system?

13. What are the major types of maps? Explain.

B. DEFINE:

a) Delta b) Tributary c) Distributary d) Anticline e) Syncline f) River

C. MARK TRUE (T) OR FALSE (F) AGAINST THE STATEMENTS

GIVEN BELOW:

1. A sketch is drawn exactly to scale.

2. A plan is a large scale map.

3. The north is shown on the right hand side of a map.

4. Scale of the map helps in measuring the actual distances between

various places shown on the map.

5. Maps are sometimes drawn without a scale.

6. A map can show even a small part of the earth.

E. GIVE A SINGLE TERM FOR EACH OF THE FOLLOWING:

1. A model of the earth on small size.

2. Lines on the maps showing height of places above the sea level.

3. A map showing the boundaries of countries and states.

4. A map on a very large scale.

5. A rough drawing not drawn to scale.

F. SELECT THE CORRECT ANSWER FROM THOSE GIVEN BELOW EACH

OF THE STATEMENT:

1. Which of the following is a true representation of the Earth as a whole?

a) Globe b) Map

c) Sketch d) Plan

2. Which of the following is not made to scale?

a) Globe b) Map

c) Plan d) sketch

3. What is shown with the help of contour lines on maps?

a) Height b) Temperature

c) Pressure d) Rainfall

4. Which of the following will have the largest scale?

a) A city guide map b) A world map

c) Map of India d) A globe

5. The map showing the boundaries and areas of different countries and states is

called:

a) Political map b) Physical map

c) Thematic map d) Small scale map

G. Match the following:-

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Answer Key of Class 6 (Worksheet 9) Civics

Exercise A

1.The members of the Gram Panchayat are elected by the Gram Sabha.

2.The panchayat at the block level is called Block Samiti. States with a

population of more than 20 lakh have it.

3.The Zila Parishad supervises the work of the Block Samitis and Gram

Panchayats under it.

Exercise B

1. a) Every villager above the age of 18, whose name is on the voter’s list is a

member of the Gram Sabha.

b) The Gram Sabha reviews the work and accounts of the Gram Panchayat. It can

also remove corrupt or inefficient members of the Gram Panchayat. In this way, the

Gram Sabha allows all adult villagers a say in the decisions that affect them.

2. The Gram Panchayat looks after agriculture, small industries, irrigation,

drinking-water supply, housing, education, health care, and roads and bridges. It

records births and deaths. It may also set up markets, organise fairs and sporting

activities, and maintain radio and TV sets for the community.

3. Composition of Nyaya Panchayat –

The Nyaya Panchayat is the village court. Its members are called panch, and it is

headed by a sarpanch. The members are elected by the Gram Sabha.

Functions of the Nyaya Panchayat –

The Nyaya Panchayat hears and decides minor cases. It can fine and punish the

guilty within certain limits. It helps villagers to get speedy justice at very little cost.

Fill Ups :

1.Nyaya Panchayat

2.Gram Sabha

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SUBJECT : PHYSICS CLASS : VI TOPIC : MEASUREMENT

Read the following content and answer the questions given below :

TEMPERATURE : It is the quantity which measures the hotness or coldness of a body. When a body is heated, its temperature rises and when it is cooled, its temperature falls.

Its S.I. unit is Kelvin (K).

Measurement of temperature:

1.Thermometer – The temperature of a body is measured by using a device called thermometer. A thermometer works on the thermal expansion of liquids.

A thermometer has two standard markings on its glass tube.

1. Lower fixed point( ice point) : It indicates the temperature at which the ice melts.

2. Upper fixed point(steam point) : It indicates the temperature at which the water boils.

2. Laboratory thermometer- It is used for measuring the temperature in science

laboratory. It consists of a glass capillary tube with bulb at one end. The bulb is filled with mercury.

It can measure temperature in the range from -10 OC to 110 OC.

3. Clinical thermometer: It is used to measure the temperature of human body.It can measure temperature in the range from 35 OC to 42 OC.

The normal temperature of a human body is 37 OC. The temperature above 37 OC indicates that a person is having fever

Scales of temperature

1. The Celsius scale : On this scale, ice point = 0OC

steam point = 100OC

The interval between ice point and the steam point = 100 – 0 = 100.

Each division is called one degree Celsius and is written OC

2. The Fahrenheit scale : On this scale, ice point = 32 OF

steam point = 212 OF

The interval between ice point and the steam point = 212 – 32 = 180.

Each division is called one degree Fahrenheit and is written OF.

3. The Kelvin scale: On this scale, ice point = 273K

steam point = 373K

The interval between ice point and the steam point = 373 – 273 = 100.

Each division is called one Kelvin and is written K.

Precautions to be followed while using a clinical thermometer:

The thermometer should be washed before and after use, preferably with an

antiseptic solution.

Jerk the thermometer, to bring the level of mercury down before using.

Never hold thermometer by its bulb.

Mercury is really poisonous. Hence, never break it with your teeth.

Do not place the thermometer in a hot flame or in the hot sun.

Clinical thermometer should not be washed with boiling water because mercury

will expand to great extent and since the available space is less it will result in breaking of thermometer.

Accuracy in measurement: Accuracy is closeness of the measurement to a specific

measurement. Mostly we use approximation in the measurement like adding sugar to tea

etc. but in some case we have to make accurate measurements like tailor always takes accurate measurement; otherwise the clothes may not fit properly.

Average measurement :The measurement can be made more accurate by taking the

measurement again and again. Now, add all these measurements. Divide it by total number of measurements. It will give the average measurement.

Average measurement = Sum of all the measurements

_________________________

Total number of measurements

Questions:

1. Fill in the blanks:

a) We use a __________ for measuring the temperature.

b) In a thermometer, the commonly used liquid is ____________.

2. Define temperature. Give its S.I. unit.

3. Write down the body temperature of a healthy person.

4. Differentiate between clinical thermometer and laboratory thermometer.

5. State the three units of temperature.

6. State the temperature of the ice point and steam point on the Kelvin scale.

7. Why should a clinical thermometer not be put in hot water?

8. State true or false:

a) The temperature of boiling point is 273K.

b) On cooling a body, its temperature rises.

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Answer Key of Science Worksheet- 9 (Biology)

A1. a) plastids, cell wall

b) lysosome

c) ribosomes

A2. The cell organelle present only in plants are cell wall and plastids.

Cell wall has following functions-

1. provides shape and rigidity to plant cell.

2. functions as storage deposits for carbohydrates.

Plastids are of three types chromoplast, leucoplast and chloroplast.

Chromoplast are the coloured plastids responsible for bright colours in fruits and flowers.

Leucoplast are the colourless plastids present in roots and store food in the form of starch,

fats and proteins.

Chloroplast green coloured plastids help in photosynthesis.

A3. Nucleus consists of two parts nuclear membrane and nucleoplasm.

Nuclear membrane….it is a double layered structure surrounding the nucleus. contains several pores

and is permeable in nature.

Nucleoplasm……colourless dense fluid forms the ground substance of nucleus. consists of nucleolus

and chromatin material. Nucleolus is a spherical body rich in protein and RNA. Produces ribosomes.

Chromatin material is a network of thread like interwind mass of chromosomes. Consists of genetic

substance DNA , RNA and proteins.

A4. Plastids are double membraned structures present only in plant cell. They are of three types

chromoplast, leucoplast and chloroplast. (refer answer no.2)

A5 a) mitochondria….shows aerobic respiration.

b) ribosomes….perform protein synthesis.

c) golgy body….secretion of hormones and enzymes.

d) lysosomes….digestion of material, destroys foreign material.

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SUBJECT-MATHS CLASS –VI WORKSHEET-10

TOPIC- PLAYING WITH NUMBERS

Factors and multiples

When two or more (natural) numbers are multiplied together then the result is called their product.

Example :- The product of 3 and 5 is i.e. 3X5=15

Each of the numbers which are multiplied together is called a factor of that product, and the product is called a multiple of each number.

e.g. 3x5=15

3 and 5 are factors of 15

15 is a multiples of 3 and 5

Types of natural numbers

Even number – A natural number which is exactly divisible by 2.

Odd number – A natural number which is not exactly divisible by 2.

Prime number – A natural number greater than 1 and having no factors other than

1 and itself. Example- 2, 3, 5 etc.

Composite number - A natural number having more than two different factors.

Co-prime numbers- Two natural numbers having no common factor other than 1. Twin-prime numbers- A pair of prime numbers whose difference is 2.

Q1 Fill in the blanks:

1. A number having exactly two factors is called a..........

2. A number having more than two factors is called a.............

3. 1 is neither ............. nor..............

4. The smallest prime number is...................

5. The smallest odd prime number is................

6. The smallest composite number is..................

7. The smallest odd composite number is..................

8. All prime numbers (except 2) are.................

Q2 Write all the factors of the following natural number:

a) 36=1, 2, 3, 4, 6, 8, 12, 24 b)68 c) 27 d) 210

Q3 Write first six multiples of the following natural numbers.

a) 30=30, 60, 90, 120, 150 b) 3 c) 5 d) 12

Q4 Find the common factors of :

a) 60, 75 and 105

=The factors of 60= 1, 2, 3, 4, 5, 6, 10, 12, 15, 30 and 60

The factors of 75= 1, 3, 5, 15, 25 and 75

The factors of 105= 1, 3, 5, 7, 15, 21, 35 and 105

Therefore, common factors of 60, 70 and 105= 1, 3, 5 and 15 b) 4, 8, 12 c) 10, 30 and 45 d) 56 and 120

Q5 Which of the following pairs of numbers are co-prime?

a) 10 and 21

The factors of 10= 1, 2, 5, 10

The factors of 21= 1, 3, 7, 21

We note the 1 is the only common factor of 10 and 21

Therefore, 10 and 21 are co-prime numbers

b) 15 and 37 c) 27 and 32 d) 17 and 85 e) 12 and 35

Q6 Express each of the following numbers as the sum of two odd primes:

(a) 44 = 13+31 or7+37 or 3+41 (b) 24 (c)36 (d)84 (e) 98

Q7 (a)Write all natural numbers less than 120 which are common multiples of 2 and 5.

=2x5=10, so multiples of 10 will be common multiples of 2 and 5.

Therefore, common multiples of 2 and 5 less than 120 are

= 10.20,30,40,50,60,70,80,90,100,110

(b)Write all natural numbers less than 100 which are common multiples of 3 and 4.

Q8(a) Write the odd numbers between 121 and 136.

= 123,125,127,129,131,133, 135

(b) Write the odd numbers between 36 and 53.

Q9 (a) Write the even numbers between 13 and 24.

= 14,16,18,20,22

(b) Write the even numbers between 232 and 251.

Q10 (a) Write four consecutive odd number succeeding 87.

= 89,91,93,95

(b) Write four consecutive odd number succeeding 79.

Q11 (a) Write four consecutive even numbers preceding 244.

= 236, 238, 240, 242.

(b) Write three consecutive even numbers preceding 124.

Q12 Write the greatest prime number between 1 and 15.

Q13 Write:

(a) The seventh multiple of 36.

(b) The even multiples of 9 less than 100.

(c) The odd multiples of 17 less than 150.

(d) The first 3-digit even multiple of 7.

(e) The multiples of 6 between 40 and 80. (f) The greatest 2-digit multiple of 5.

Q14 Which of the following numbers are prime?

(a) 29

Factors of 29 = 1, 29

So, its a prime number. (b) 57 (c) 43 (d) 61

x-x-x-x-x-x

ANSWER KEY OF WORKSHEET 9

Q1(b) 6 (c) -2 (d) -3 (e) 2

Q2 (b) 15 (c) -15 (d) -3 (e) 662 (f)386 (g) -712

Q3 (b) -2121 (c) 929 (d) 3322 (e) -9545

Q4 (b) 0 (c) -4 (d) 8

Q5 (b) 157 (c) -88 (d) 340 (e)-81

Q6 (b) 4 (c)-10

Q7 ₹ 3045

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COMPUTER APPLICATIONS (CLASS-6): WORKSHEET- 9

CHAPTER: FILE MANAGEMENT – DATA ORGANISATION

FILE MANAGER – provides detailed information about files, folders and drives.

It enables user to -

ACCESS

EDIT

MANAGE

ORGANISE

Files and Folders.

FILE – A file is a collection of related information stored together on some storage

device.

FOLDER – A folder is like a cabinet where we keep relevant files.

(1) _____________ provides detailed information about files, folders and drives.

(2) To copy multiple non-consecutive files and folders, press and hold down the

______ key.

(3) A ___________ is a collection of related information stored together on some

storage device.

(4) Press _______ to delete files/folders permanently.

(5) ________ a file/folder means to create a duplicate copy of the selected

file/folder.

(6) A __________ is like a cabinet where we keep relevant files.

(7) _______ a file/folder means shifting it from its original location to another

location.

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HINT BOX –

MOVING; FOLDER; CTRL; FILE MANAGER;

SHIFT + DEL; FILE; COPYING

FILL IN THE BLANKS -

Class 6 Worksheet-8 (For Mohali and Zirakpur Branches Only)

Answer Key of Worksheet-7 (Mohali and Zirakpur)

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