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Question
Scientists have to work very hard and make many sacrifices for years, to achieve success in their experiments. Why?
Solution
A scientist has to search and discover new information and knowledge from zero. She/he has to create an experiment, decide what tools and materials will be needed, and sometimes make the tools or materials that are not available. Experiments may not always work or give results. One has to keep trying, without being sure of the desired result. Edison made 1000 failed attempts before he invented the consistent light bulb. It takes years of constant efforts, determination, and sufficient resources to achieve success in experiments. Hence, scientists have to work very hard and make many sacrifices for years, to achieve success in their experiments.
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RELATED QUESTIONS
Have you ever participated in or visited a science exhibition?
Did you observe/learn any new things there? What are those?
What is the difference between a discovery and an invention?
Discuss in pairs/groups about the precautions one has to take while working in a science laboratory. Write them in the form of Dos and Don’ts.
| Dos | Don’ts |
| Handle test tubes and other glass apparatus with care. | Don’t touch chemicals with bare hands. |
| ________________________ | ________________________ |
| ________________________ | ________________________ |
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Write in one sentence each, why the following years were landmarks in the lives of Pierre and Marie Curie.
- 1895 __________________
- 1902 __________________
- 1903 __________________
- 1906 __________________
- 1911 __________________
Complete the web diagram with the qualities of Madame Curie.
Two discoverers of new lands
Two conquerers of the peak of Mt. Everest
Original name of Madame Curie
Subjects Marie majored in, at the University of Paris
Nationality of her husband Pierre
Two radio- active elements discovered by Curies
Scientist who discovered the properties of uranium
Read the text carefully and match the incidents occurred in Madam Curie’s life given in table A with the years in table B.
| Table A | Table B |
| 1. Henri Becquerel discovered that uranium had the property where radioactive elements can give off rays which can penetrate substances that are opaque to light. | 1902 |
| 2. Maria Sklodowska was born in Warsaw, Poland. | 1934 |
| 3. Marie was awarded the Nobel Prize | 1896 |
| 4. Curie couple discovered radium. | 1867 |
| 5. Marie passed away. | 1911 |
What common characteristics did Marie and Pierre share, as students?
Which of the two scientists was greater than the other? Say why?
Why was the gift of a ton pitchblende, a great stroke of luck, to the Curies?
What proves that Marrie Curie was a true lover of humanity and not a wealth?
Read and understand the following word. Find out/search for proverb/thought/quote/slogan that is related to them.
Courage
Read and understand the following word. Find out/search for proverb/thought/quote/slogan that is related to them.
Strength of character
Read and understand the following word. Find out/search for proverb/thought/ quote/slogan that is related to them.
Determination
Read and understand the following word. Find out/search for proverb/thought/quote/slogan that is related to them.
Hard-work
Match the branches of Science with what fields they study :
| (A) | (B) |
| (a) Ecology | (i) Study of Atmosphere |
| (b) Geology | (ii) Study of Plant-life |
| (c) Meteorology | (iii) Study of the Universe |
| (d) Anatomy | (iv) Study of living organisms and environment |
| (e) Botany | (v) Study of human mind and emotions |
| (f) Psychology | (vi) Study of structure and functions of the body |
| (g) Cosmology | (vii) Study of solid earth and rocks |
The life and work and inventions of Marie Curie are given in detail in the text. Go to your library or search on internet at least five famous scientists who have given great inventions to the world and write about them or prepare a chart showing the information about them.
