West Bengal Primary Board The Book of Nature Question Answer Class 7 Lesson 1 | Activity Solution
The Book of Nature
Activity 1
Underline the appropriate alternatives:
(a) India is in fact a (big/small/huge) part of the earth’s surface.
(a) Once upon a time the earth was too (cold/dark/hot) for any living being to survive.
(c) Fossils are (a type of wild animal/ one kind of hard rock/ the remains of old livings beings).
Activity 2
Answer the following questions in complete sentences:
(a) What must we do to know about the story of this world?
Answer - To know the story of the world, we must read the story of the earth in books.
(b) How old is our earth?
Answer - Our earth is millions and millions of years old.
(c) Who roamed the earth before the arrival of human beings?
Answer - Before the arrival of human beings, only animals roamed the earth.
Activity 3
Fill in the blanks with suitable words from the text:
Answer -
(a) As a subject, historyis quite interesting.
(b) We have good relations with our neighboring countries.
(c) Plants need air, water, and sunlight to grow.
(d) Can you imaginehow big the Universe is?
(e) You should studyregularly if you want to be a good student.
Activity 4
Make interesting sentences with the following words:
a) Interest- I have a great interest in painting.
b) surface- The surface of the table was polished.
c) Inhabited- This forest is inhabited with wild animals.
d) Together- We must work together to strengthen our country.
e) scientist- APJ Abdul Kalam was a noted scientist.
Activity 5
Identify which of the following statements are true and which are False. Give a supporting statement for each of your answers:
Answer -
(a) Fairy tales are rich in imagination. (True)
Supporting Statement - This would be very interesting for we could imagine anything we wanted to and would thus make up the most beautiful fairy tales.
(b) We have no means to know about the far-off days. (False)
Supporting Statement - But although we have no books written in those far-off days...as a book would.
(c) The alphabet of nature is like the Hindi or the English alphabet. (False)
Supporting Statement - To be able to read any language, Hindi or Urdu, or English, you have to learn it alphabet.
(d) A pebble is smooth and shiny. (True)
Supporting Statement - If you see a little round shiny pebble, does it not tell you something?
(e) We can learn a lot about our world from rivers and mountains. (False)
Supporting Statement - If a little pebble can tell you so much, how much more could we learn from all the rocks and mountains and the many other things we see around us?
Activity 6
Complete the following sentences with information from the text:
(a) No book could have been written in old times because man did not exist then.
(b) To be able to read any language one has to know the alphabet.
(c) A small pebble was definitely a part of a big rock.
(d) On the beaches at the seaside, little children make castles out of the sand.
Activity 7
Fill in the following chart with information from the text:
| Statement | Reason |
| 1. Fairy tales need not be true. | They are not based upon facts. |
| 2. A piece of stone or rock looks different from a pebble. | the edges were worn away and it's rough |
| 3. A bit of rock from some mountainside reaches a little valley | the rain came and washed it down |
| 4. All pebbles do not become sand. | some are left in the river banks |
Activity 8
Answer the following questions:
(a) What things around us tell us about the earth's early story?
Answer - Rocks, mountains, seas, stars, rivers, and deserts tell us about earth's early story.
(b) Why does a pebble have a smooth surface?
Answer - Stones are rolled at the bottom of the river and their edges are worm away and its rough surface is made smooth and shiny.
(c) How does a pebble become the grain of sand?
Answer - As the river carries the small stones it becomes smaller and smaller till at last, it becomes a grain of sand.
(d) What does the author mean by "The Great Book of Nature"?
Answer - We get to know about the ancient world through nature. Thus the author compares nature to a great book.
Activity 9
Rearrange the sentences in the correct order by writing the numbers in the bracket:
Answer –
(a) The rock is taken to a big river by the little river.(2)
(b) At last it is turned into grains of sand. (6)
(c) It becomes a pebble. (5)
(d) A bit of rock is pushed by a mountain stream into a little river. ( 1 )
(e) The pebble becomes smaller because it is carried on and on by the river. (4)
(f) The edges of the rock are worn away and its rough surface is made smooth. (3)
Activity 10
Match the following table:-
| A | B |
| 1.fascinating | (a) the set of letters in a language (2) |
| 2. merely | (b) top visible side (5) |
| 3. fortunately | (c) became damaged by use (6) |
| 4. alphabet | (d) only or just (2) |
| 5. surface | (e) luckily (3) |
| 6. worn | (f) very interesting or charming (1) |
Activity 11
Replace the underlined words or phrases with suitable opposite words from the box: There are some extra words.
[Hopeful, lost, add, left, ugly, late, happy, rough]
(a) The man became famous in the earlyyears of his life.
Answer – The man became famous in the lateyears of his life.
(b) She is looking very happy.
Answer – She is looking very sad.
(c) The trunk of this huge tree has a smoothbark.
Answer – The trunk of this huge tree has a roughbark.
(d) Jatin found his pencil box on his way to school.
Answer – Jatin lost his pencil box on his way to school.
(e) Smita learnt to subtract.
Answer – Smita learnt to add.
Activity 12(a)
(a) A Read the paragraph below and put the apostrophe (‘)mark in the proper places:
Answer -
Rahim's father is a well-known person. The Hon'ble M.L.A. of the area is his relative. He has donated a good sum of money to the local library for buying new books. The library is located near the Girl's high school. Sabina's brother and Akram's sister often visit the library. They like to read children's storybooks and Tagore's poems. Their parents also go there to read newspapers after the day's work.
Activity 12(b)
Rewrite the following passage using contracted forms of words:
Answer -
The teacher said, "We'll know you are a good student. I can't understand why you've done such a thing. You shouldn't behave rudely with your classmates. Promise me, you will remember what I've said". The student realized his mistake. He said," Sir, I'm sorry. I shall never behave like this".
Activity 13(a)
Fill in the chart correctly:
| Pronouns | Possessive Adjectives | Possessive Pronouns |
| I | My | Our |
| We | our | ours |
| You | your | yours |
| He | his | his |
| She | her | hers |
| It | it | its |
| They | their | theirs |
Activity 13(b)
Fill in the blanks with appropriate Possessive Pronouns and Possessive Adjectives:
Answer -
Yesterday I forgot to take back my pen from Sunil. I gave him it in the class because he didn't bring that.
The little girl has tom her clothes. "But why are your clothes dirty?" asked the mother to the girl's elder brothers. "We have soiled ourclothes while playing outside", they said.
Activity 14(a)
Colony para
Deshbandhu road
Delhi - 110092
Dear Nirmal,
I got your letter yesterday. Thank you for your invitation to go on a tour to Rajasthan together. But my mother is very ill. She is going to have heart surgery early next month. So we can't join you for the year. Please don't mind. Wish you a happy and memorable visit to Rajasthan.
Your loving friend
Kanan
Nirmal Das
C/o. Sunil Kumar Das
22/1 Hill Road Siliguri
Activity 14(b)
Suvasgram
22/1 lake road
Purulia * 723121
Dear Sachin,
I hear that you had gone to your aunt's place during the holidays. How was your vacation? Write to me in detail about your stay there. I too had gone to visit my uncle's place at Darjeeling. We went by toy train from New Jalpaiguri. This was the first time I was traveling by toy train as we usually travel by bus. I cannot describe how I felt. It was a lifetime experience. The other things were all the same. But the interesting part was the train ride. Do write to me about your experience in your next letter. This much for now.
I remain
Your loving friend
Samar
Sachin Kumar
C/o. Nikhil Kumar
Library Road, Bankura
Activity 15
A VILLAGE FAIR
A village fair is usually held in the open fairground. All villagers and even people from far-off villages attend it. There are a lot of activities such as merry-go-round, circus tent. There are shops and counters selling various items. Children love to buy balloons from balloon sellers. The fair is one place where both old and young enjoy a lot. Children visit the fair with their parents.
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