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Question
How does an electric fan managed to throw so much air when it is switched on?
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Solution
An electrical fan comprises of three blades and a whirling motor. The moment it is switched on. the motor starts and begins to rotate, forcing the blades to move in circular movement. this generates a lot of pressure, which forces the air downwards in all directions.
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RELATED QUESTIONS
Now fill in the blanks with suitable words from the ones that you have formed.
(i) Mass literacy was possible only after the ___________ of the printing machine.
(ii) Ramesh is unable to tackle the situation as he lacks ____________.
(iii) I could not resist the _____________ to open the letter.
(iv) Hardwork and ___________are the main keys to success.
(v) The children were almost fainting with ______________after being made to stand in the sun.
Why does grandfather take Toto to Saharanpur and how? Why does the ticket collector insist on calling Toto a dog?
Read this article about the great Indian Rhinoceros. [You will find the information useful for your group discussion in 5.]
The Indian Rhinoceros or the Great One-Horned Rhinoceros or the Asian Onehorned Rhinoceros (Rhinoceros unicomis) is a large mammal primarily found in north-eastern India, Nepal and parts of Bhutan. It is confined to the tall grasslands and forests in the foothills of the Himalayas.
The Indian Rhinoceros once ranged throughout the entire stretch of the Indo Gangetic Plain but excessive hunting reduced their natural habitat drastically.
Today, about 3,000 Indian Rhinos live in the wild, 1,800 of which are found in Assam alone. In 2008, more than 400 Indian Rhinos were sighted in Nepal's Chitwan National Park.
In size it is equal to that of the White Rhino in Africa; together they are the largest of all rhino species. The Great One-Horned Rhinoceros has a single horn; this is present in both males and females, but not on newborn young. In most adults, the horn reachee a length of about 25 centimetres, but has been recorded up to 57 .2 centimetres in length. The nasal hom curves backwards from the nose. The horn is naturally black.
This prehistoric-looking rhinoceros bas thick, silver-brown skin which becomes pinkish near the large skin folds that cover its body. The male develops thick neckfolds. It has very little body hair aside from eyelashes, ear-fringes and tail-brush.
These rhinos live in tall grasslands and riverine forests, but due to the loss of habitat, they have been forced towards cultivated land. They are mostly solitary creatures, with the exception of mothers and calves and breeding pairs, although they sometimes, congregate at bathing areas.
The Indian Rhinoceros makes a wide variety of vocalizations. At least ten distinct vocalizations have been identified: snorting, honking, bleating, roaring, squeak panting, moo-grunting, shrieking, groaning, rumbling and humphing. In addition to noises, the rhino also uses olfactory communication.
In aggregation, Indian Rhinos are often friendly. They will often greet each other by waving or bobbing their heads, mounting flanks, nuzzling noses, or licking. Rhinos will playfully spar, run around, and play with twigs in their mouth. Adult males are the primary instigators of fights. Fights between dominant males are the most common cause of rhino mortality. Indian rhinos have few natural enemies, except for tigers. Tigers sometimes kill unguarded calves, but adult rhinos are less vulnerable due to their size. Humans are the only other animal threat, hunting the rhinoceros primarily for sport or for the use of its horn. Indian Rhinos have been somewhat tamed and trained in circuses, but they remain dangerous and unpredictable animals.
In the nineteenth and early twentieth century, the Indian Rhinoceros was hunted relentlessly. Reports from the middle of the nineteenth century claim that some military officers in Assam individually shot more than 200 rhinos. In the early 1900s, officials became concerned at the rhinos' plummeting numbers. By 1908 in Kaziranga, one of the Rhinos' main ranges, the population had fallen to around 12 individuals. In 1910, all rhino hunting in India became prohibited.
The rhino has been a major success in conservation. Only 100 remained in the early 1900s; a century later, their population has increased to about 2500 again, but even so, the species is still endangered. The Indian rhino is illegally poached for its horn. Some cultures in East Asia believe that the hair has healing and potency powers and therefore is used for traditional Chinese medicine and other Oriental medicines.
The Indian and Nepalese Governments have taken major steps towards Indian Rhinoceros conservation with the help of the World Wildlife Fund (WWF). The Kaziranga National Park and Manas National Park in Assam, Pobitora Reserve Forest in Assam {having the highest Indian rhino density in the world), Orang National Park of Assam, Laokhowa Reserve Forest of Assam (having a very small population) and Royal Chitwan National Park in Nepal are homes to this endangered animal.
What does he plant who plants a tree?
He plants, in sap and leaf and wood,
In love of home and loyalty
And far-cast thought of civic good____
His blessing on the neighbourhood,
Who in the hollow of his hand
Holds all the growth of all our land____
A nation's growth from sea to sea
Stirs in his heart who plants a tree.
Read the lines given above and answer the question that follow:
How is the man holding the blessing on his neighborhood in his hand?
The most important thing we've learned,
So far as children are concerned,
Is never, NEVER, NEVER let
Them near your television set-----
Or better still, just don't install
The Idiotic thing at all.
In almost every house we've been,
we've watched them gaping at the screen
They loll and slop and lounge about,
And stare until their eyes pop out.
(Last week in someone's place we saw
A dozen eyeballs on the floor.
They sit and stare and stare and sit
Until they're hypnotised by it,
Until they're absolutely drunk
With all that shocking ghastly junk.
Read the lines given above and answer the question given below.
How does television keep the children still?
There was a time when our people covered the land as the waves of a wind-ruffled sea cover its shell-paved floor, but that time long since passed away with the greatness of tribes that are now but a mournful memory. 1 will not dwell on, nor mourn over, our untimely decay, nor reproach my paleface brothers with hastening it, as we too may have been somewhat to blame.
Youth is impulsive. When our young men grow angry at some real or imaginary wrong, and disfigure their faces with black paint, it denotes that their hearts are black, and that they are often cruel and relentless, and our old men and old women are unable to restrain them. Thus it has ever been. Thus it was when the white man began to push our forefathers ever westward. But let us hope that the hostilities between us may never return. We would have everything to lose and nothing to gain. Revenge by young men is considered gain, even at the cost of their own lives, but old men who stay at home in times of war, and mothers who have sons to lose, know better.
Read the extract given below and answer the question that follow.
What happened when the tribal young man became angry?
He flungs himself down in a corner to recoup from the fatigue of his visit to the shop. His wife said, “You are getting no sauce today, nor anything else. I can’t find anything to give you to eat. Fast till the evening, it’ll do you good. Take the goats and be gone now,” she cried and added, “Don’t come back before the sun is down.”
Read the extract given below and answer the question that follow.
How much money did Muni owe to the shopkeeper?
Lights were shining from every window, and there was a savoury smell of roast goose, for it was New-year’s eve—yes, she remembered that. In a corner, between two houses, one of which projected beyond the other, she sank down and huddled herself together. She had drawn her little feet under her, but she could not keep off the cold; and
she dared not go home, for she had sold no matches, and could not take home even a penny of money. Her father would certainly beat her; besides, it was almost as cold at home as here, for they had only the roof to cover them, through which the wind howled, although the largest holes had been stopped up with straw and rags. Her little hands were almost frozen with the cold. Ah! perhaps a burning match might be some good, if she could draw it from the bundle and strike it against the wall, just to warm her fingers. She drew one out—“scratch!” how it sputtered as it burnt! It gave a warm, bright light, like a little candle, as she held her hand over it. It was really a wonderful light. It seemed to the little girl that she was sitting by a large iron stove, with polished brass feet and a brass ornament. How the fire burned! and seemed so beautifully warm that the child stretched out her feet as if to warm them, when, lo! the flame of the match went out, the stove vanished, and she had only the remains of the half-burnt match in her hand.
Read the extract given below and answer the question that follow.
What did she imagine when she lighted the first match?
Whom does Portia ultimately marry? Who were the two other suitors who took the test? Why, in your opinion, is the person whom she marries worthy of her?
How should we view the past and the future? what advice does the past give in this context?
Answer the following question.
Why did Kari push his friend into the stream?
Discuss the following topic in groups.
Do you think there is life on other planets? Can you guess what kind of people there may be on them? In what ways are they likely to be different from us?
What was it that made Prem leave his village?
Who hides behind the trees in “Hide and Seek.”
Why did the talking fan’s chatter come to an end?
ind the word that refers to the snake’s movements in the grass.
Answer the question.
What does he imagine about
The people with whom they live?
The child wishes so because ____________.
Speak to five adults in your neighbourhood. Ask them the following questions (in any language they are comfortable in). Then come back and share your findings with the class.
- Do they buy their provisions packed in plastic packets at a big store or loose, from a smaller store near their house?
- Where do they buy their footwear? Do they buy branded footwear or footwear made locally? What reasons do they have for their preference?
- Do they buy readymade clothes or buy cloth and get their clothes stitched by a tailor? Which do they think is better?
