A Curious Mind
ACTIVITIES
1. Answer the following questions:
(a) Who was the scientist that Meera was talking about?
Ans: Meera was talking about the renowned Indian scientist C. V. Raman.
(b) What was the name given to the discovery made by C. V. Raman?
Ans: The discovery made by C. V. Raman was called the Raman Effect.
(c) What is the root of many discoveries and inventions?
Ans: Curiosity is the root of many discoveries and inventions.
(d) In which year did C. V. Raman win the Nobel Prize?
Ans: C. V. Raman won the Nobel Prize in Physics in 1930.
(e) What question did Orgo ask Nikita? Why was Nikita irritated by the question?
Ans: Orgo asked Nikita why the colour of the sky changes at different times. Nikita was irritated because she was busy painting and felt disturbed by his question.
(f) “We’ll surely keep this in mind next time.” What would Orgo and Nikita keep in mind?
Ans: Orgo would remember to consider whether someone was busy before asking questions, and Nikita would remember not to dismiss questions immediately but to respond politely.
2. Say whether the following statements are True or False:
(a) Nikita knew why the colour of the sky changes at different times.
Ans: False.
(b) National Science Day is observed on 28th February.
Ans: True.
(c) C. V. Raman was born in Calcutta.
Ans: False.
(d) Raman was not good in his studies.
Ans: False.
(e) Raman breathed his last on November 21, 1970.
Ans: True.
(f) Meera was happy about Orgo asking questions.
Ans: True.
3. Put a tick (✔) on the correct option:
(a) Raman was awarded the Bharat Ratna in:
Ans: ✔ (ii) 1954.
(b) C. V. Raman won the Nobel Prize for:
Ans: ✔ (i) Discovering the Raman Effect.
(c) C. V. Raman was born in:
Ans: ✔ (i) Tiruvanaikkaval.
(d) National Science Day is observed to:
Ans: ✔ (iii) Commemorate the discovery of the Raman Effect.
(e) Nikita painted the sky:
Ans: ✔ (iii) Red.
4. Read the lesson to complete the timeline given below:
Ans:
- 1888 – C. V. Raman was born.
- 1921 – C. V. Raman went on a voyage to England and became curious about the colour of the sea.
- 1930 – C. V. Raman received the Nobel Prize in Physics.
- 1954 – C. V. Raman was awarded the Bharat Ratna.
- 1970 – C. V. Raman breathed his last on 21st November.
5. Write the meanings of the unfamiliar words:
| Words | Meanings |
|---|---|
| Inquisitive | Eager to know or learn something |
| Breakthrough | An important discovery or development |
| Renowned | Famous and respected |
| Voyage | A long journey, especially by sea |
| Irritated | Annoyed or slightly angry |
6. Frame sentences using the words listed above:
(i) Inquisitive: The inquisitive child asked many questions about the stars.
(ii) Breakthrough: The scientists made an important breakthrough in their research.
(iii) Renowned: C. V. Raman was a renowned Indian scientist.
(iv) Voyage: The ship began its long voyage early in the morning.
(v) Irritated: She was irritated by the loud noise outside.
7. Find and write down the synonyms of the following words from the text:
| Word | Synonym |
|---|---|
| Curious | Inquisitive |
| Breakthrough | Discovery |
| Essential | Important |
| Renowned | Famous |
8. (c) Complete the paragraph with the help of Orgo’s notes:
Ans: Thomas Alva Edison had certain qualities that helped him to become a great inventor. Firstly, he was very curious and always wanted to know how things worked. Secondly, he believed in independent learning and tried to find answers to his questions through reading and experiments. Lastly, he had great determination and did not give up even when he faced difficulties. These qualities helped him become a great inventor.
9. (a) Complete the sentence that conveys the message of the notice:
Ans: On the occasion of National Science Day, every student will prepare a speech on “Science in Everyday Life.”
(b) Orgo wrote an e-mail to Meera asking for help to prepare the speech.
Ans: Students read the e-mail.
(c) Rearrange the parts to get Meera’s e-mail:
Ans:
To: orgo6@gmail.com
Subject: Agreeing to help
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 okay, Orgo? See you tomorrow.
With regards,
Meera
Let’s learn some grammar
10. (a) Read the sentences and notice the forms of the verb ‘be’.
Ans: ‘Is’, ‘am’ and ‘are’ are present tense forms of the verb be, while ‘was’ and ‘were’ are its past tense forms.
(b) Fill in the blanks with the appropriate forms of the ‘be’ verb:
(i) Mita and Raman ______ my close friends.
Ans: Are.
(ii) Mita ______ Raman’s neighbour.
Ans: Is.
(iii) I ______ in regular touch with them.
Ans: Am.
(iv) They ______ with me yesterday.
Ans: Were.
(v) We ______ very happy to visit a park together yesterday.
Ans: Were.
12. Read the following sentences:
(i) Nikita has drawn a scenery.
(ii) Meera has entered the room.
Ans: Both sentences are in the Present Perfect Tense because they describe actions that have just been completed.
13. Choose the correct option and fill in the blanks:
Ans: Nikita has come to Meera’s house. Meera and Nikita are watching T.V. now. They are eating snacks while watching T.V.
14. (a) Read the words aloud and notice the beginning sounds.
Ans: Students read the words aloud.
(b) Write ‘s’ or ‘sk’ according to the pronunciation of ‘sc’:
| 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 |
15. Make a list of five examples of good behaviour:
Ans:
(i) Listen carefully when someone is speaking.
(ii) Ask questions politely.
(iii) Wait patiently for your turn.
(iv) Say “please”, “sorry” and “thank you” when necessary.
(v) Respect other people’s time and feelings.
16. How do you address a conflict when you face one?
Ans:
(i) I remain calm and talk politely.
(ii) I listen carefully to the other person.
(iii) I try to understand the other person’s point of view.
(iv) I apologise if I have made a mistake.
(v) I try to find a solution that is acceptable to everyone.
17. Listen to a news item about a moon mission and fill in the blanks:
(i) India became the ______ country to land on the South Pole of the moon.
Ans: India became the first country to land near the South Pole of the moon.
(ii) The Chandrayaan-3 mission was developed by ______.
Ans: The Chandrayaan-3 mission was developed by ISRO.
(iii) Chandrayaan-3 landed on the moon on ______ August 2023.
Ans: Chandrayaan-3 landed on the moon on 23rd August 2023.
(iv) We observe ______ Day on 23rd August every year.
Ans: We observe National Space Day on 23rd August every year.
18. Project:
(i) Rabindranath Tagore
Name: Rabindranath Tagore
Date of Birth: 7 May 1861
Place of Birth: Calcutta, Bengal Presidency, British India
Nobel Prize in the Field: Literature
Year of Receiving the Nobel Prize: 1913
(ii) Venkatraman Ramakrishnan
Name: Venkatraman Ramakrishnan
Date of Birth: 5 April 1952
Place of Birth: Chidambaram, Tamil Nadu, India
Nobel Prize in the Field: Chemistry
Year of Receiving the Nobel Prize: 2009
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