topic- major landforms€¦ · divisibility rules with examples or divisibility rules for...

DELHI PUBLIC SCHOOL,B.S.CITY SESSION 2020-2021

Note: All work to be done in a thin copy.

Subject: SST Class: 5

TOPIC- MAJOR LANDFORMS

SUB- TOPIC- INTRODUCTION AND MOUNTAIN

**Content of the above lesson.

• The Earth does not have an even surface. While some parts are

flat, others are raised.

• This variation in the physical forms of the Earth, is called relief.

• Landforms are the relief features of the Earth.

• A mountain is a landform that rises high above its surrounding

land.

• Mountains are more than 900 metres above the mean sea level.

• Mountains vary in height and shape. They have steep slopes and

rounded or conical peaks.

• A mountain range is a group or chain of mountains located close

together.

• Two examples of mountain ranges are the Andes in South

America and the Rockies in North America.

• The height and shape of mountains tell their age.

• Young mountains like the Himalayas are high and have pointed

peaks.

• Old mountains like the Aravallis have rounded peaks and are not

so high.

** Read the above content carefully and answer the following

questions accordingly.

1. What is a mountain range? Give two examples with their location.

2. Differentiate between the young mountains and the old

mountains.

3. Complete the following sentences:

a. Mountains have steep slopes and

_______________________

b. A mountain is a landform that rises high above its

________________________

4. Fill in the blanks.

a. ____________ are the relief features of the Earth.

b. Mountains are more than_______________ above the mean

sea level.

**Activity based on the above content.

1. Mention the colours used for the following landforms on a map or a

globe.

a) Plateau -

b) Plains -

c) Deserts -

d) Mountains -

e) Rivers -

2. Unscramble the jumbled words:-

1. AGNER -

2. OIESCKR –

3. SENDA –

4. AVALRALIS -

---------------------------------xxxxxx----------------------------------

Subject: MATHEMATICS Class: 5

MULTIPLES AND FACTORS(Continued....)

Divisibility Rules with Examples or Divisibility rules for 2,3,4,5,6,8,9,10,

Divisibility Rule for 2 :-

A number is divisible by 2, if the digit at ones place of that

number is divisible by 2 or digit at ones place is 0, 2, 4, 6, 8.

For Example –

Check whether 2396 is divisible by 2 ?

In,2396 6 is at ones place

and 6 is divisible by 2 So,2396 is also divisible by 2

Divisibility Rule for 3 :-

A number is divisible by 3, if the sum of all the digits of the number

is divisible by 3.

For Example -

Check whether 23973 is divisible by 3 ?

In, 23973 Sum of its digits = 2 + 3 + 9 + 7 + 3 = 24

and 24 is divisible by 3

So, 23973 is also divisible by 3.

Divisibility Rule for 4 :-

A number is divisible by 4, if the number formed by last 2 digits of

that number (ones and tens place) is divisible by 4.

For Example –

Check whether 23924 is divisible by 4 ?

In, 23924 24 is the number formed by tens and ones places.

and 24 is divisible by 4. therefore, 23924 is also divisible by 4.

Divisibility Rule for 5 :-

A number is divisible by 5 if the digit at ones place is either “0” or ”

5″.

For Example –

Check whether 23920 is divisible by 5 ?

In, 23920 0 is the digit at ones place

So, 23920 is divisible by 5.

Divisibility Rule for 6 :-

A number is divisible by 6, if it is divisible by both 2 and 3.

For Example –

Check whether 23724 is divisible by 6 ?

Checking Divisibility for 2, A number is divisible by 2, if the digits at ones place is divisible by 2 or digit at ones place is 0, 2, 4, 6, 8.

In, 23724

4 is at ones place and 4 is divisible by 2 So, 23724 is also divisible by 2.

Checking Divisibility for 3, A number is divisible by 3, if the sum of all the digits of the numbers , is divisible by 3.

In, 23724 Sum of digits = 2 + 3 + 7 + 2 + 4 = 18 and 18 is divisible by 3 So, 23724 is also divisible by 3.

Therefore, 23724 is divisible by 2 and 3 Hence, 23724 is also divisible by 6.

Divisibility Rule for 8 :-

A number is divisible by 8, if the number formed by last 3 digits of that number (ones, tens and hundreds place) is divisible by 8.

For Example –

Check whether 950720 is divisible by 8 ?

In, 950720 720 is the number formed by ones, tens, and hundreds place

digits or the number formed by last 3 digits . and 720 is divisible by 8. Hence, 950720 is also divisible by 8.

Divisibility Rule for 9 :-

A number is divisible by 9, if the sum of all the digits of the number is divisible by 9.

For Example –

Check whether 24597 is divisible by 9 ?

In 24597, Sum of digits = 2 + 4 + 5 + 9 + 7 = 27 27 is divisible by 9

So, 24597 is also divisible by 9.

Divisibility Rule for 10 :-

A number is divisible by 10 if the digit at ones place is 0.

For Example –

Check whether 23920 is divisible by 10 ?

In 23920, 0 is at ones place

So, 23920 is divisible by 10.

EXERCISE

I. Using the test of divisibility check the divisibility for the following numbers.

1. Divisibility by 2

a) 35828 b) 2971 c) 75030

2. Divisibility by 3

a) 2013 b) 817 c) 480

3. Divisibility by 4

a) 2832 b) 28381 c) 2600

4. Divisibility by 5

a) 725 b) 9360 c) 318

5. Divisibility by 6

a) 216 b) 4030 c) 3600

6. Divisibility by 8

a) 9816 b) 16302 c) 7168

7. Divisibility by 9

a) 2983 b) 4311 c) 540810

8. Divisibility by 10

a) 505 b) 210 c)7000 _________________x__________________

Subject: ENGLISH Class: 5

Noun-Gender

Gender is a category of noun. There are four types of Genders.

Masculine Gender: The names of all male persons or animals are said

to be of the Masculine Gender.

Example: man, actor, uncle, hero, king, lion etc.

Feminine Gender: The names of all female persons or animals are said

to be of the Feminine Gender.

Example: woman, aunt, daughter, actress, queen, lioness etc.

Neuter Gender: Things without life cannot be distinguished either as

male or female; hence the names of such things are said to be of the

Neuter Gender. Example: house, knife, tree, chair, table, book, ball etc.

Common Gender: Names that can be used for both males and females

are said to be of the Common Gender.

Example: child, parent, student etc.

Some Feminine are formed by simply adding –ess to the Masculine.

Sometimes the form is slightly changed before –ess is added.

NOTE – ALSO NOTE HOW THE FOLLOWING FEMININE GENDER ARE FORMED:

The Feminine of a Compound Noun is formed by changing that part

which shows the gender.

By changing the word

Many Nouns have different words for the Masculine and the Feminine.

Common Gender

Example:

Neuter Gender

Example:

WHEN A NOUN CHANGES FROM MASCULINE TO FEMININE, THE PRONOUN IN THE

SENTENCE MUST CHANGE TOO.

Example:

Note:

1. Though Collective Nouns refer to living-beings but are used as

Neuter-Noun. For Example: The army is called to tackle the situation.

2. Objects known for their power, strength, and violence are used

as Masculine Gender Noun. For Example: The death is cruel. He is as

certain as tomorrow.

3. Objects known for their beauty, gentleness and grace are used

as Feminine-Gender Noun. For Example: The earth is a unique planet.

Her beauty is adorable.

Rewrite the following sentences using the opposite gender of the

underlined word.

1. My nephew is a doctor.

Answer: …………………………………………………..

2 The horse cleared the hurdle easily.

Answer: …………………………………………………….

3. The milkman has already left.

Answer: ……………………………………………………

4. The tiger chased the deer.

Answer: …………………………………………………..

5. He remained a bachelor for life.

Answer: ………………………………………

In the following sentences underline the nouns that are of the common

gender.

1. My brother sings very well.

2. My friend wants to be a singer.

3The watchmen caught the thief red-handed.

4. The doctor treated the patient

Change the words in bold from feminine to masculine.

1. The girl looks very much like her mother.

2. The mistress gave her maidservant a present.

3. The nun is talking to my grandmother.

4. My aunt was an airplane stewardess once.

5. The cow was chased by the vixen.

6. My maternal aunt is a spinster.

7. My niece has a pet tabby-cat.

8. This actress played the part of the heroine in the movie.

9. This girl is the bride.