"Why is the sea water blue" PPT courseware

"Why is the sea water blue" PPT courseware

Word collection:

Vast expanse of blue waves, warm sunshine, gentle breeze

Famous all over the world, endlessly feeling guilty

Unknowingly, I have achieved quite a lot. I closed my eyes and listened.

Unconvincing Noble Gases Interesting

Guilt Liquid Speechless Childish Emergence

Loss of Taboo Nobel Prize Spot

create situations

Raman (1888-1970), an Indian, his father was a mathematics professor. At the age of 11, he finished high school and entered AVN University. Two years later, he transferred to the famous Presidency University in Madras (now the University of Chennai), 15 At the age of 18, he received his bachelor's degree at the top of his class and received multiple awards in physics and English science. He was the first Asian scientist to receive the Nobel Prize in 1930 for his work on light scattering and the Raman effect. He also made contributions to acoustics, optics, crystallographic dynamics, color and their Research in perception.

What does the text mainly talk about?

This text tells the story of an Indian scientist, Raman, who was inspired by the curiosity of a little boy on a Mediterranean ship, and thus studied the reason why sea water is blue, and discovered a ubiquitous light in solids, liquids, and gases. Scattering effect. It reflects Raman’s spirit of continuous exploration and dedication to scientific research.

Read the text carefully and talk about the order in which the text is narrated?

1. (Natural paragraphs 1-8) First written on a ship in the Mediterranean, Raman explained to a little boy that the water was blue because it reflected the color of the sky.

2. (Natural paragraphs 9-13) Write again that Raman had doubts about his explanation to the little boy. Later, he studied that seawater scatters sunlight and appears blue, thus discovering a ubiquitous light scattering effect.

3. (14 natural paragraphs) Finally, the boy’s story reminds people: new discoveries lie in the “unknown” within your “known”.

Read carefully

Read paragraphs 1-8 aloud and think: What did you learn from the conversation between the boy and his mother?

Little boys can generate new questions from what they already know and want to understand what they don't know.

The conversation between mother and son aroused Raman's interest, and he explained to the child: The sea water is blue because it reflects the color of the sky.

Study text 9-11 natural paragraphs

That child full of curiosity, those big eyes seeking knowledge, and those "whys" that kept coming out made Raman deeply moved. Guilt. As a scientist, he found that he had unknowingly lost the boy's curiosity of pursuing the "unknown" among the "known", and he couldn't help but feel shocked.

Raman answered the boy's question why he felt "guilty"?

The reason for guilt is because the explanation that "the blue color of sea water reflects the color of the sky" was proposed by the great British scientist Rayleigh, and almost everyone, including Raman, agrees with this explanation. Raman felt guilty for not asking why like a boy.

Find sentences from the text that you think are inspiring or beneficial to others, and copy them into "My Collection Book".

Losing curiosity is the biggest taboo for scientific discovery and invention. Even a promising scientist will become blind and stop moving forward because of this.

"Taboo" refers to trying to avoid certain things that may have adverse consequences. For scientists, "curiosity" is the spirit of continuous exploration. Only with this spirit can we continue to make discoveries and inventions, and can we continue to make achievements on the road of scientific research. Losing curiosity will lead to Come to the terrible consequences of "closing your eyes, blocking your ears, and standing still".

center

The text tells the story of Indian scientist Raman, who was inspired by the curiosity of a little boy on a Mediterranean ship, and thus studied the reason why sea water is blue, and discovered a ubiquitous light scattering effect from solids, liquids, and gases. . It reflects Raman’s spirit of continuous exploration and dedication to scientific research.

Homework

1. Group of words.

Ji ( ) taboo ( ) night ( ) guilt ( ) plug ( )

Avoid ( ) Wei ( ) Liquid ( ) Pain ( ) Race ( )

2. Make six pairs of antonyms from the following words.

fall respect punishment

Trust rises rejection

Happy to accept doubt

reward sad insult

( )——( ) ( )——( )

( )——( ) ( )——( )

( )——( ) ( )——( )

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"Why is the sea water blue" PPT courseware 3:

"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 found...

"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 inquisitive. 3. Understand the profound sentences in the text and experience Raman...