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Authoritative PPT Summary
"Why is the sea water blue" PPT courseware 3
Character introduction
Raman, Indian physicist, 1888-1970, won the 1930 Nobel Prize in Physics for his research work on light scattering and the discovery of the Raman effect. He is the first person in Asia to win the Nobel Prize.
He discovered that the frequency of monochromatic light changes after it is scattered by media molecules, which is called the combined scattering effect. This discovery was quickly recognized. The Royal Society officially called it "one of the three or four most outstanding discoveries in experimental physics in the 1920s."
independent learning one
1. Ingenious words: lazy, childish, guilty, liquid, taboo, taboo
2. Polyphonic characters: sai, qi
3. Antonyms: presentation, dazzling, guilt
4. Understand the meaning of words: close your eyes and listen, continuously
5. Summarize the content of the article: This article tells the story of getting _____ inspiration from _____ and thus discovering _____, showing the _____ spirit in _____.
Glossary
1. Inert gas: Also known as rare gas, the chemical properties of rare gas are very inactive and are not prone to chemical reactions with other elements. They are called "inert gases".
2. Reflection, refraction, and scattering: When light passes through smoke, it will encounter many small solid particles and small liquid beads, causing frequent reflection and refraction. Due to the uncertainty of smoke particles, the direction and position of the light emitted are greatly deflected, and scattering occurs.
3. The Nobel Prize was established with part of the legacy (31 million Swedish kronor) of Alfred Bernhard Nobel, the famous Swedish chemist and inventor of nitroglycerin dynamite. The Nobel Prize is divided into five categories: physics, chemistry, physiology or medicine, literature, and peace. It is awarded with the annual interest or investment income of the fund to those who have made significant contributions to mankind in these fields in the previous year.
Independent learning 2
1. Solve the second question after class based on the text content.
2. Understand the meaning of the following sentences:
(1) Losing curiosity is the biggest taboo for scientific discovery and civilization. Even a promising scientist will become blind and stagnant because of this.
(2) Never give up your curiosity about the "known", maybe new discoveries are in the "unknown" of the "known".
3. Talk about feelings
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"Why is the sea water blue" PPT courseware 2:
"Why is the sea water blue" PPT courseware 2 Learning objectives 1. Read the text aloud and grasp the content of the text. 2. Understand the importance of curiosity for scientific inquiry, and establish students’ academic concepts of being diligent and inquiring. 3. Understand the profound sentences in the text and experience Raman...
"Why is the sea water blue" PPT courseware:
"Why is the sea water blue" PPT courseware word collection: blue waves, vast expanse of sunshine, warm breeze, slowly famous in the world, endless, deeply guilty, unknowingly, quite accomplished, eyes closed, hard of hearing, hard to believe, inert gas, interesting, guilty, liquid, speechless, children gushing ..