Fiber to Fabric - Class 7 - Science
Renews every month. Cancel anytime
Your personal doubt-solving assistant
Chatterbot AI gives you 100% accurate answers to your questions in an instant.
Extra Questions - Fiber to Fabric | Lakhmir Singh | Science | Class 7
The raw material for making silk is obtained from:
A) plants
B) cocoons
C) spiders
D) chemicals
The correct answer is B) cocoons.
Silk is primarily produced using the cocoons of the silk moth larvae. These larvae are cultivated to produce the natural protein fiber that can be spun into the luxurious and fine fabric known as silk.
Which of the following is a plant fibre?
A) Silk
B) Pashmina wool
C) Jute
D) Wool
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowChoose the characteristics of silk:
A. Strong fiber
B. Rough
C. Soft and smooth
D. Expensive
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowHow many steps are involved in the paper-making process?
A Two steps
B Three steps
C Four steps
D Five steps
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowVery Short Answer - Fiber to Fabric | Lakhmir Singh | Science | Class 7
Name two fibres obtained from animals.
Two fibres obtained from animals are wool and silk.
Which type of wool is common in Tibet and Ladakh ?
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowWhat causes sorter's disease?
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowWhich of the following terms is related to silk production?
Floriculture, Tissue culture, Silviculture, Apiculture, Sericulture
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowShort Answers - Fiber to Fabric | Lakhmir Singh | Science | Class 7
What type of feed (or food) is given to sheep ?
Sheep are herbivores and prefer to eat grass and leaves. Apart from grazing on grass, they are also fed a mixture of pulses, corn, jowar, oil cakes (material left after the extraction of oil from oil-seeds), and minerals. In winter, sheep are kept indoors and fed on leaves, grains, and dry fodder.
What is meant by the 'rearing' and 'breeding' of sheep ?
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowWhat is meant by the term 'reeling the silk'? How is it done?
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowLong Answers - Fiber to Fabric | Lakhmir Singh | Science | Class 7
Describe briefly, how wool is obtained from sheep and processed to make woollen yarn.
Wool is obtained from sheep through a comprehensive process. Initially, shearing involves cutting off the sheep's fleece in one piece, a process that doesn't harm the sheep due to the outer layer of skin being dead. After shearing, the fleece undergoes scouring, where it is washed to remove dirt, dust, and grease. The cleaned fleece is then subjected to sorting, where fibres are categorized based on quality, such as length and fineness. To add colour, the sorted wool might go through dyeing. Following dyeing, combing straightens fibres and removes shorter ones, preparing them for the final stage, spinning. In spinning, the fibres are twisted into yarn, ready for knitting or weaving into woollen products. This process transforms raw wool from sheep into usable woollen yarn.
What is meant by the following terms?
(a) Shearing
(b) Scouring
(c) Sorting
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowMCQ - Fiber to Fabric | Lakhmir Singh | Science | Class 7
Which of the following does not yield wool?
(a) yak
(b) camel
(c) goat
(d) woolly dog
Wool is a natural fiber obtained from various animals, used for making textiles and clothing. The animals traditionally known for yielding wool include sheep, goats (such as the Cashmere and Angora goats), yaks, and camels (such as the Bactrian camel), among others. Each of these animals provides a distinct type of wool with varying qualities and characteristics suitable for different uses in textiles.
- Yak: Yaks produce a fine and warm wool used in high-quality textiles.
- Camel: Camels, particularly the Bactrian camel, have a protective outer coat and a fine undercoat that can be used for wool.
- Goat: Certain breeds of goats, like the Cashmere and Angora, are well-known for their fine wool fibers.
- Woolly dog: Historically, there were breeds of dogs, such as the Salish Wool Dog, which were bred by indigenous peoples for their wool. However, modern breeds typically do not yield wool used in the textile industry in a manner comparable to sheep, goats, yaks, or camels.
Given the question implies a typical context of wool production for textiles, the option that does not yield wool in the conventional sense used in textiles today would be:
(d) Woolly dog
While historically some dog breeds did provide fibers for textiles, they are not commonly associated with wool production in contemporary times, especially when compared to the other animals listed.
The silkworm is :
(a) a caterpillar
(b) a larva
(c) a caterpillar as well as larva
(d) neither caterpillar nor larva
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowThe rearing of silkworms for obtaining silk is called:
(a) agriculture
(b) sericulture
(c) silviculture
(d) pisciculture
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowHOTS - Fiber to Fabric | Lakhmir Singh | Science | Class 7
Some animals have a thick coat of hair on their body. These hair give a material $\mathrm{X}$ which is used for making cardigans after suitable treatment. The material $X$ traps a lot of $Y$ which prevents the body heat of these animals from being lost to surroundings and keeps them warm in winter. The material X is removed from the animals at the beginning of the season $\mathrm{Z}$.
(a) What are (i) $\mathrm{X}$, and (ii) Y?
(b) Name the season Z.
(c) Name any four animals which yield $X$.
(a) (i) The material X is Wool.
(ii) The Y mentioned is Air. Wool traps a lot of air which acts as an insulator, keeping the body warm.
(b) The season Z is Summer. The wool is sheared from the animals at the beginning of summer so that they can survive the warmer weather without their dense coat of hair.
(c) Four animals which yield Wool (X) are:
1. Sheep
2. Goat
3. Yak
4. Camel
The hair of an animal A are cut from its body in one piece alongwith a thin layer of its skin in the form of B. This process is called C. The B of this animal is then cleaned by using soap and a lot of water by a process $\mathrm{D}$. The clean $\mathrm{B}$ is then converted into yarn $\mathrm{E}$ by the process of sorting, dyeing, combing and spinning.
(a) What could be (i) A and (ii) B ?
(b) Name the process (i) C and (ii) D.
(c) What is the yarn $\mathrm{E}$ ?
(d) State one use of $\mathrm{E}$.
Improve your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up nowImprove your grades!
Join English Chatterbox to access detailed and curated answers, and score higher than you ever have in your exams.
Sign up now