Chapter 5(Elementary Science)

Soil consists of

rocks,

particles of sand,

silt and clay,

remains of dead plants and animals,

water,

air,etc.

Soil is classified into three groups:

Clay soil

Sandy soil

Loamy soil

It has the smallest particles and more compact

among three soils.It is-

reddish in colour

Sticky when wet, but smooth when dry

Clay soil can retain water as the particles are tiny, water passes slowly through this soil.

It has the largest size particles among three types of soil. It is—

Pale brown or light grey.

Dry and feels gritty.

Water can pass through this soil quickly, hence crops do not grow well in this soil.

Loamy soil is a mixture of sand, clay and humus. It is—

Dark in colour.

Feels coarse, soft and dry.

As it is mixture of sand and clay, it can hold water tightly but drains well.

Most areas in Bangladesh are made up of loamy soil.

Chapter-5Pg no.35Q/A

Q.1.Why do crops grow well in loamy soil?

Ans: Water is very important for crops to grow. Plants grow in soil because they get water from soil. Loamy soil is a mixture of sand, clay and humus. Due to the properties of sand and clay, it has a tight hold on water but drains well. As a result, paddy, wheat, sugar-cane, etc. grow well in this type of soil.

Q.2.What are the characteristics of sandy soil?

Ans: The characteristics of sandy soil are given below:

It is generally pale brown and light grey in colour.

The particles of sandy soil are larger than the particles of clay soil and loamy soil.

It is generally dry and gritty.

It cannot retain much water because of its large-sized particles.

Q.3.Mention three differences between loamy soil and clay

soil.

Ans: Three differences between loamy soil and clay soil are

given below:Loamy soil Clay soil

1.It is dark in colour. 1. It is reddish in colour.

2. It feels coarse, soft

and dry.

2. It is sticky when wet,

but smooth when dry.

3. It contains particles of

varied sizes.

3.It has the smallest

particles among the

three soils.

National Curriculum

Half Yearly Worksheet-1(Chapter -5)

Class: Three Subject: Science

Name:______________________________________ Section: ____ Sl:_____Date:________

1.Fill in the blanks: a) Clay soil is often ________________ in colour.

b) Decayed remains of plants and animals form ______________.

c) The soil which has the largest particles is called ____________________________.

d) The soil which consists of sand, clay and humus is called _________________ soil.

e) Soil is classified into _____________ groups.

f) The loose material covering Earth’s surface is called _________________.

g) Clay soil is _____________ when wet, but smooth when dry.

h)Clay soil has the ___________________ particles among the three soils.

i)The colour of sandy soil is pale brown or _____________________________.

j) Loamy soil feels coarse, __________________ and dry.

k) Legumes and jackfruit grow well in _______________ soil.

l) __________________ soil is suitable for growing watermelon and ground nut.

m) Loamy soil is a mixture of ______________, _______________ and humus.

n) _______________ grow well in loamy soil.

o) Most areas of Bangladesh are made up of _________________soil.

National Curriculum

Half Yearly Worksheet-2(Chapter -5)

Class: Three Subject: Science

Name:______________________________________ Section: ____ Sl:_____Date:________

1. Choose the correct answer and put a tick (√) mark on it:

a) In which type of soil can jackfruit and legumes grow well? i. Sandy soil ii. Loamy soil iii. Clay soil iv. Salty soil b) In which type of soil can watermelon and groundnut grow well?

i. Salty soil ii. Sandy soil iii. Clay soil iv. Loamy soil

c) Which soil is red in colour?

i. Sandy ii. Clay iii. Loamy iv. Salty

d) How is humus created?

i. From wastage part of fish

ii. From one type of soil

iii. From decayed remains of plants and animals

iv. By mixing the sand with clay

e) How many types of soil are there?

i. 2 ii. 3 iii. 4 iv. 5

f) Which of the following soil is pale brown or light grey in colour?

i. Sandy ii. Clay iii. Loamy iv. Salty

g) In which type of soil can paddy, wheat and barley grow well? i. Sandy soil ii. Loamy soil iii. Clay soil iv. Salty soil

2. Match the words on the right with the words on the left:

a) Loamy soil 1) bubbles come out

b) Decayed remains of plant and animals 2) rocks, particles of sand and clay

c) When we pour water into soil 3) Sugarcane

d) Soil consists of 4) dry and feels gritty

e) Sandy soil is 5) humus

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অর্ ধ- বার্ষ ধক (র্িক্ষাবষ ধ-২০২০)

শ্রের্ি: ৩য় র্বষয়: বাাংলা ১ম পত্র

অনুিীলন পত্র- ৫

অধ্যায় - ১১ ( আমার পি)

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অর্ ধ- বার্ষ ধক (র্িক্ষাবষ ধ-২০২০)

শ্রের্ি: ৩য় র্বষয়: বাাংলা ১ম পত্র

অনুিীলন পত্র- ৬

অধ্যায় - ১২ ( পার্িদের কথা)

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অধ্যায়-১২ পাখিদের কথা

অনু: ২ উত্তর:

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অনু: ৫ উত্তর:

ক) ২✓ ি) ৩✓ গ) ২✓ ঘ) ৪✓

অনু: ৬ উত্তর:

ক) আমাদের পেদশ আদছ কি রকদমর পাখি।

ি) আর কদিা পে িাদের নাম।

গ) খমটি স দর গান কদর পকাখকল, ময়না ও পোদয়ল।

ঘ) রখে, আখম অদনক পাখি পেিখছ ।

ঙ) মাছরাঙার খপদের রং গাঢ় োোখম, পালক উজ্জ্বল নীল।

চ) িুখম কী কী পাখি পেদিছ?

অনু: ৭ উত্তর:

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ভিভিও ভিঙ্ক-

https://youtu.be/A20ozDP6EmM

7/4/20 Tuesday

■ English 2-(E.G)- Chap-9 Read the chapter and write Q/A in book from pg- 27,28 (Ex-A) and

■ (Ex- B)

■ Summary: “The Elephant and the Pots”

■ A potter name Velan lived in a village call Puliyur. It was his son’s wedding and he wanted a grand procession on that day. He went to Manikchand a moneylender of that village and asked for his elephant for the grand wedding procession. Everything was going according to plan and on the wedding day the bride and the groom were riding on the elephant. After the wedding was over and Velan was returning with the elephant to Manikchand suddenly thr elephant fell and died. He said the sad story to Manikchand and he took him to court. Manikchand didn’t accept the money or any other elephant as he wanted only his dead elephant back. The judge understood their story and asked Velan not to come to court the next day. Then he gives Velan the idea to keep pots in front of his door. Later he will send Manikchand to his house and accidently the pots will be broken by him. And Velan will be obstinate like Manikchand and ask for the same broken pots to return to him. And then the judge also added don’t agree to his money or for new pots but bring him to me. Whatever the planning was it was successful as Manikchand did break the pots and was brought to court. Then at last the judge said so, csan you return Velan’s broken pots to him?Manikchand then realized his mistake and went home sadly. Because of his stubbornness he lost the money also.

7/4/20 Tuesday

■ Question Answers: pg- 27,28 (Ex- A)

■ 1.Why did Velan need an elephant?

■ Ans: Velan needed an elephant for the grand procession of his son’s wedding.

■ 2. Why was Velan unable to return the elephant to Manikchand?

■ Ans: Velan failed to return the elephant to Manikchand because it fell and died suddenly on the way.

■ 3.Why was Manikchand not ready to take money from Velan?

■ Ans: Manikchand wanted back his same old elephant that died so he refused to take the money.

■ 4. Why did the judge ask Velan to keep the pots near the door?

■ Ans: The judge asked him to keep the pots near the door so that when Manikchandwill come to look for him he would break the pots accidently.

■ 5. What do you learn from this story?

■ Ans: We have to suffer loss because of our stubbornness.

7/4/20 Tuesday

■ Pg-28 (Exercise- B)- “The Elephant and the pots”

■ Answer: 1. rushed 2. stubborn 3. potter 4. borrow

Summary- Tom is a small boy who hates going to school. He was sad because it

was the boring Monday when he has to go to school. And as an excuse when he

noticed his one tooth was loose he started to moan beside his brother Sid. And

immediately Sid called their Aunt Polly. After knowing the situation she

understood Tom was making an excuse not to go to school. So she asks Sid to

bring a silk thread and a chunk of fire. Then she ties one end of the thread with

the bedpost and the other end with Tom’s loose tooth. And then she pushes the

chunk of fire towards Tom’s face. The problem of the loose tooth was over but

with trouble Tom got a reward too. All in the school were envy of his gap in the

upper row of teeth.

7/4/20 TUESDAYENGLISH 2 (BUZZWORD)- CHAP- 4 WILL BE DISCUSSED AND

Q/A OF PG-38 (EX- A) LEARN AND WRITE IN H.W COPY.

PG- 38 (EX- A) Q/A (Write it in Eng 2 h.w copy)

1. Why was Tom very sad on Monday morning?Ans: Tom was very sad because he hated Mondays the beginning of a boring week.

2. How did Tom plan to stay away from school?Ans: Tom planned to pretend to be sick to stay away from school.

3. What did Sid think was the matter with Tom?Ans: Sid thought that Tom was dying.

4. How did Aunt Polly pull out the loose tooth?Ans: To pull out the loose tooth, Aunt Polly tied one end of the thread to Tom’s tooth and the other end to the bed post.

5. When Tom went to school, what was wrong with his upper row of teeth?Ans: Tom became the envy of all the other boys because of the gap in the upper row of teeth.

BUZZWORD- CHAP-4DO H.W IN BOOK-

PG- 40- EX- BPG- 41/42- DICTIONARY WORK

PG- 42- APOSTROPHE EXERCISE