Question

Lesson-1: Science Around You

Answer the following

1. Who won the Nobel prize for medicine for his work on genes?
______________________________________________________
2. Who discovered radium and polonium?
______________________________________^______^___^_____
3. Who is the inventor of electric bulb?
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4. Who was the first Indian scientist to win Nobel Prize?
______________________________________________________
5. Which Indian scientist became the President of India in 2002?
______________________________________________________
Fill in the blanks

6. The first telephone message was sent by_____to Mr. Watson on 10 March 1876.
7._____are now used for long distance communication.

Answer in short

8. Explain how science has helped us in the following areas.
i) Communication
_________________________________________________
ii) recreation.
____________________________________________

Give reason

9. Science must be used wisely.
______________________________________________________
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Answer 1

Answer:

ans 1 - Robert W. Holley, Har Gobind Khorana and Marshall W. Nirenberg 

Ans 2 - Marie Curie

Ans 3- Thomas Edison

Ans 4 - Dr.C.V.Raman

Ans 5 - APJ Abdul Kalam

Ans 6- Alexander Graham Bell 

Ans 7- Telephone

Answer 2

Answer:

ans 1 - Robert W. Holley, Har Gobind Khorana and Marshall W. Nirenberg

Ans 2 - Marie Curie

Ans 3- Thomas Edison

Ans 4 - Dr.C.V.Raman

Ans 5 - APJ Abdul Kalam

Ans 6- Alexander Graham Bell

Ans 7- Telephone

Explanation:

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