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The following paragraph is taken from the Class VII science NCERT textbook-Discovery of silk: The exact time of the discovery of silk is perhaps unknown. According to an old Chinese legend, the empress Si-lung-Chi was asked by the emperor Huang-ti to find the cause of the damaged leaves of mulberry trees growing in their garden. The empress found white worms eating up mulberry leaves. She also noticed that they were spinning shiny cocoons around them. Accidentally a cocoon dropped into her cup of tea and a tangle of delicate threads separated from the cocoon. The silk industry began in China and was kept a closely guarded secret for hundreds of years. Later on, traders and travelers introduced silk to other countries. The route they traveled is still called the 'silk route'. What is the purpose of including the above in a science textbook?  a. to develop a historical perspective. b. to develop an appreciation of how incidents/ideas give rise to the discovery of new things. c. to develop a holistic understanding of science d. to make science textbooks light as the above is just for information and not for testing

The following paragraph is taken from the Class VII science NCERT textbook-Discovery of silk: The exact time of the discovery of silk is perhaps unknown. According to an old Chinese legend, the empress Si-lung-Chi was asked by the emperor Huang-ti to find the cause of the damaged leaves of mulberry trees growing in their garden. The empress found white worms eating up mulberry leaves. She also noticed that they were spinning shiny cocoons around them. Accidentally a cocoon dropped into her cup of tea and a tangle of delicate threads separated from the cocoon. The silk industry began in China and was kept a closely guarded secret for hundreds of years. Later on, traders and travelers introduced silk to other countries. The route they traveled is still called the 'silk route'. What is the purpose of including the above in a science textbook?  a. to develop a historical perspective. b. to develop an appreciation of how incidents/ideas give rise to the discovery of new things. c. to develop a holistic understanding of science d. to make science textbooks light as the above is just for information and not for testing Correct Answer a, b & c

Science refers to the study of structure and behaviour of the physical and natural things through observation and experimentation. In other words, science is a classified knowledge gained from a systematic study of the behaviour of nature.

  • Textbooks help teachers and learners in this regard. It is a tool to be used in the teaching-learning process to facilitate effective and meaningful learning.

Key Points

The purpose of including the above paragraph in a science textbook is-

  • To develop a historical perspective: 
    • ​The Silk Road was a vast trade network connecting Eurasia and North Africa via land and sea routes.
    • The Silk Road may have formally opened up trade between the Far East and Europe during the Han Dynasty, which ruled China from 206 B.C. to 220 A.D.
    • The Silk Road earned its name from Chinese silk.
  • To develop an appreciation of how incidents/ideas give rise to the discovery of new things.
    • According to an old Chinese legend, the empress Si-lung-Chi was asked by the emperor Huang-ti to find the cause of the damaged leaves of mulberry trees growing in their garden.
    • The empress found white worms eating up mulberry leaves. She also noticed that they were spinning shiny cocoons around them.
    • Accidentally a cocoon dropped into her cup of tea and a tangle of delicate threads separated from the cocoon.
  • To develop a holistic understanding of science
    • ​Art, religion, philosophy, technology, language, science, architecture, and every other element of civilization was exchanged along these routes.
    • These were carried with the commercial goods the merchants traded from country to country.
    • This paragraph also develops a holistic understanding of science related to silk and the silk route, that how scientifically it was traded in ancient times.

Hence we conclude that a, b & c statements are correct regarding the purpose of this paragraph to be given in the NCERT book of class 7.

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will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
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being traded in China and Tibet. At that time, I was not a Buddhist; I wrote to the Dalai Lama asking him to say that this is harmful and he wrote back to say, “We
will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
huge shock waves in the Himalayan community. Within six months, in Lhasa, people ripped the fur trim of their tubba, the traditional Tibetan dress. The messenger was ideal and the audience was receptive,” says Maas who is a conservationist. She has studied the battered foxs behavioral ecology in Serengeti,Africa. She heads the endangered species conservation at the Nature and Biodiversity Conservation Union (NABU) International Foundation for Nature, Berlin. “I metSamdhong Rinpoche, The Karmapa, HH the Dalai Lama and Geshe Lhakdor and I thought, if by being a Buddhist, you become like this, I am going for it, “says Maas, who led the IBC initiative for including the Buddhist perspective to the global discourse on climate change by presenting the statement, The Time to Act is Now: aBuddhist Declaration on Climate Change, at COP21 in Paris. “It was for the first time in the history of Buddhism that leaders of different sanghas came together to take a stand on anything! The statement lists a couple ofimportant things: the first is that we amass things that we dont need; there is overpopulation; we need to live with contentment and deal with each other and theenvironment with love and compassion,” elaborates Maas. She is an ardent advocate of a vegan diet because “consuming meat and milk globally contributes more toclimate change than all "transport in the world.” Turning vegetarian or vegan usually requires complete change of perspective before one gives up eating their favorite food. What are the Buddhist ways to bringabout this kind of change at the individual level? “To change our behavior, Buddhism is an ideal vehicle; it made me a more contented person,” says Maas, who grewup in Germany, as a sausage chomping, meat-loving individual. She says, “If I can change, so can anybody”. Why is Ms. Barbara an ardent follower of vegan diet?
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being traded in China and Tibet. At that time, I was not a Buddhist; I wrote to the Dalai Lama asking him to say that this is harmful and he wrote back to say, “We
will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
huge shock waves in the Himalayan community. Within six months, in Lhasa, people ripped the fur trim of their tubba, the traditional Tibetan dress. The messenger was ideal and the audience was receptive,” says Maas who is a conservationist. She has studied the battered foxs behavioral ecology in Serengeti,Africa. She heads the endangered species conservation at the Nature and Biodiversity Conservation Union (NABU) International Foundation for Nature, Berlin. “I metSamdhong Rinpoche, The Karmapa, HH the Dalai Lama and Geshe Lhakdor and I thought, if by being a Buddhist, you become like this, I am going for it, “says Maas, who led the IBC initiative for including the Buddhist perspective to the global discourse on climate change by presenting the statement, The Time to Act is Now: aBuddhist Declaration on Climate Change, at COP21 in Paris. “It was for the first time in the history of Buddhism that leaders of different sanghas came together to take a stand on anything! The statement lists a couple ofimportant things: the first is that we amass things that we dont need; there is overpopulation; we need to live with contentment and deal with each other and theenvironment with love and compassion,” elaborates Maas. She is an ardent advocate of a vegan diet because “consuming meat and milk globally contributes more toclimate change than all "transport in the world.” Turning vegetarian or vegan usually requires complete change of perspective before one gives up eating their favorite food. What are the Buddhist ways to bringabout this kind of change at the individual level? “To change our behavior, Buddhism is an ideal vehicle; it made me a more contented person,” says Maas, who grewup in Germany, as a sausage chomping, meat-loving individual. She says, “If I can change, so can anybody”. Why did Ms. Barbara Mass say “If I can change, so can anybody”?
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