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Question
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. |
| ________________________ | ________________________ |
| ________________________ | ________________________ |
| ________________________ | ________________________ |
Solution
| Dos | Don’ts |
| Handle test tubes and other glass apparatus with care. | Don’t touch chemicals with bare hands. |
| Know emergency procedures. | Never leave an ongoing experiment unattended. |
| Work under the supervision of your teacher. | Never taste, touch, or smell any chemicals. |
| Hold equipment and chemicals away from your body while working on an experiment. | Never eat or drink using laboratory glassware. |
APPEARS IN
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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.
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Original name of Madame Curie
Her place of birth
Subjects Marie majored in, at the University of Paris
Nationality of her husband Pierre
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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 |
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?
Besides the uses of radium and polonium mentioned in the text, in what other way, do you think, it is used in the field of medicine?
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.
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.
