Lesson 3: A Curious Mind – Activities (Pages 47-57)
Activities (Page 47)
1. Answer the following questions:
a) Who was the scientist that Meera was talking about?
Ans: The scientist Meera was talking about was Chandrasekhara Venkata Raman (C.V. Raman)
b) What was the name given to the discovery made by C.V. Raman?
Ans: The phenomenon was named after him and came to be known as the Raman Effect.
c) What is the root of many discoveries and inventions?
Ans: curiosity is the root of many great discoveries and inventions
d) In which year did C. V. Raman win the Nobel Prize?
Ans: C.V. Raman was awarded the Nobel Prize in Physics in the year 1930.
e) What question did Orgo ask Nikita? Why was Nikita irritated by the question?
Ans: Orgo asked why the colour of the sky keeps changing at different times5. Nikita was irritated because she was busy drawing a scenery and considered it a silly question.
f) “We’ll surely keep this in mind next time”. What would Orgo and Nikita keep in mind?
Ans: They would keep in mind:
- That Orgo should consider if someone is busy before asking a question.
- That Nikita should not dismiss questions straightaway and should politely ask the person to wait.
2. Say whether the following statements are True or False:
| Statement | Answer | |
| a) Nikita knew why the colour of the sky changes at different times. | False
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| b) National Science Day is observed on 28th February. | True
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| c) C.V Raman was born in Calcutta. | False (He was born in Tiruvanaikkaval near Trichinapally in Tamil Nadu.)
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| d) Raman was not good in his studies. | False (He was a brilliant student.)
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| e) Raman breathed his last on November 21, 1970. | True
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| f) Meera was happy about Orgo asking questions. | True
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Activities (Page 48)
3. Put a tick () on the correct option:
| Question | Answer |
| a) Raman was awarded the Bharat Ratna in | 1954 |
| b) C.V. Raman won the Nobel Prize for | i) discovering the Raman Effect
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| c) C.V. Raman was born in | i) Tiruvanaikkaval
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| d) National Science Day is observed to | Commemorate the discovery of Raman Effect. |
| e) Nikita painted the sky | Red. |
Activities (Page 49)
4. Read the lesson to complete the timeline given below.
| Year | Event | |
| 1888 | Birth of C.V. Raman
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| 1921 | Was on a voyage and wondered why the sea appeared blue |
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| 1930 |
Won the Nobel Prize in Physics
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| 1954 | Awarded the highest civilian award of India, Bharat Ratna |
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| 1970 | Breathed his last (died) |
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(Note: The textbook timeline boxes are generic, the answers are filled in based on the text.)
5. Underline some words in the text which are not familiar to you. In the following table, write down the words in the left column. Write the meaning of each word (by looking up in a dictionary) in the right column.
| Words (from the text) | Meanings (from dictionary/context) | |
| inquisitive |
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Very interested in learning or knowing about things232323.
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| breakthrough |
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An important development that may lead to an achievement.
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| renowned |
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Famous and respected.
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| commemorate |
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To recall and show respect for (someone or something) in a ceremony. |
| voyage |
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A long journey, especially by sea or in space.
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(Note: Learners’ choices for unfamiliar words may vary. The meanings provided in the text or general usage are given here.)
6. Frame a sentence of your own by using each word you have listed in the table above:
- Inquisitive: Her inquisitive mind led her to ask many questions about the universe.
- Breakthrough: Scientists achieved a major breakthrough in treating the disease.
- Renowned: Dr. Kalam was a renowned scientist in India.
- Commemorate: We observe Earth Day to commemorate the importance of our planet.
- Voyage: The old mariner embarked on a long sea voyage.
(Sentences will vary.)
7. Find and write down the synonyms of the following words from the text:
- curious: inquisitive
- breakthrough: discovery
- essential: important (or crucial – not in this lesson’s glossary, but general synonym)
- renowned: famous
Activities (Page 50)
8. a) Read the conversation between Orgo and his mother.
(This is a reading activity.)
b) Orgo went to the library accordingly. He came across a biography of Thomas Alva Edison…
(This is a reading activity.)
Activities (Page 51)
c) Orgo made some notes of what he had read about Thomas Alva Edison. Read what Orgo wrote: Main topic: Edison became a great inventor due to certain qualities. Supporting information: The qualities: i) curiosity, ii) independent learning, iii) determination.
Now, complete the paragraph with the help of the notes that Orgo has listed. You can use the connecting words given in the box (firstly, secondly, lastly).
Thomas Alva Edison had certain qualities that helped him to become a great inventor. Firstly, he was driven by curiosity and constantly asked questions. Secondly, he believed in independent learning by reading many books and performing scientific experiments. Lastly, his determination helped him overcome many hurdles and achieve his goals.
Activities (Page 52)
9. a) Orgo and his friends read the notice on the notice board. Complete the following sentence that conveys the message of the notice:
On the occasion of The National Science Day , every student will prepare a speech on ‘Science in Everyday Life’.
b. Orgo wrote an e-mail to Meera. Let’s read what he wrote:
(This is a reading activity.)
Activities (Page 53)
c) The reply given by Meera to Orgo are in parts written in the cards. Read the parts: Now, rearrange and write the parts in the proper places to get Meera’s e-mail:
| E-mail Part | Content | |
| To: | To: orgo6@gmail.com |
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| Subject: | Subject: Agreeing to help |
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| Body: | Dear Orgo, That’s really nice. I will definitely help you. I will come to your house tomorrow. Both of us will search on the internet, find the relevant information and prepare the speech. Is that ok, Orgo?
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| Closing: | See you tomorrow. With regards, Meera
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Activities (Page 54)
Let’s learn some grammar:
10. a) Read these sentences: Notice the underlined words in the above sentences.
(This section explains the different forms of the verb ‘be’ in the present tense (is, am, are) and past tense (was, were).)
b) Now, fill in the blanks with the appropriate forms of the ‘be’ verb:
i) Mita and Raman are my close friends.
ii) Mita is Raman’s neighbour.
iii) I am in regular touch with them.
iv) They were with me yesterday.
v) We were very happy to visit a park together yesterday.
11. Look at the picture and read the sentences given beside it: When we talk about actions happening at the time of speaking, we use the Present Continuous Tense.
(This section explains the Present Continuous Tense.)
Activities (Page 55)
12. Now, read the following sentences: When we talk about actions that have just happened, we use the Present Perfect Tense.
(This section explains the Present Perfect Tense.)
13. Choose the correct option and fill in the blanks:
Nikita is coming (has come/is coming) to Meera’s house. Meera and Nikita are watching (have watched/are watching) T.V. now. They are eating (have eaten/are eating) snacks while watching T.V.
14. a) Let’s read the words in the box aloud and notice the beginning sound of each word:
(This section explains the two sounds of the consonant blend ‘sc’: /s/ as in ‘sun’ and /sk/ as in ‘sky’.)
b) Now, read aloud the following words beginning with the consonant blend ‘sc’. Write ‘s’ if the word begins with ‘s’ sound as in ‘sun’. Write ‘sk’ if ‘sc’ is pronounced like ‘sk’ as in ‘sky’. Two are done for you.
| Word | Sound |
| i) scale | sk |
| ii) scent | s |
| iii) scene | s |
| iv) scare | sk |
| v) scissors | s |
| vi) score | sk |
| vii) scooter | sk |
| viii) scan | sk |
Activities (Page 56)
15. Read what Meera told Orgo and Nikita: Work with your friend and make a list of five examples of good behaviour. Present the list in a piece of a paper. Display the list in the classroom.
(This is a collaborative activity. The list should include examples of good manners or courteous actions, similar to the advice given by Meera.)
Examples of Good Behaviour:
- Saying ‘Please’ and ‘Thank you’ when asking for or receiving something.
- Listening respectfully when others are speaking.
- Offering help to those who need it.
- Waiting patiently for your turn.
- Apologising when you make a mistake.
16. Think and say: How do you address a conflict when you face one? Share a few ways and share them with the class.
(This is a discussion activity.)
Ways to Address a Conflict:
- Talk it out: Communicate calmly with the other person.
- Listen actively: Understand the other person’s point of view.
- Compromise: Find a solution where both sides give up a little.
- Take a break: Step away from the situation if emotions are high, and return to it later.
- Seek help: Ask an elder or a neutral friend (like Meera) to mediate.
17. Listen to a news item about a moon mission read to you by your teacher. As you listen, fill in the blanks with the correct pieces of information.
(The answers are based on the Transcript of listening text on page .)
i) India became the first country to land on the South Pole of the moon.
ii) The Chandrayan 3 mission was developed by ISRO.
iii) The Chandrayan 3 landed on the surface of the moon on 23rd August, 2023.
iv) We observe National Space Day on 23rd August every year.
18. Project: Find out the names of other Indians who won the Nobel Prize in different fields. Collect and paste their pictures on a chart paper. Include the following information about each of them.
(This is a research project. No direct answer from the text is possible, but C.V. Raman is given as an example.)
Information to collect:
- Name:
- Date of birth:
- Place of birth:
- Nobel Prize in the field:
- Year of receiving the Nobel Prize: