Synthetic Fibres and Plastics_E_4

Name two polyester fabrics and write their uses. What is the first statement of this audio clip?

• Terylene is a popular polyester. It can be drawn into very fine fibres that can be woven like any other yarn.

• PET is a very familiar form of polyester. It is used for making bottles, utensils, films, wires and many other useful products.

Name two polyester fabrics and write their uses. What is the second statement of this audio clip?

• Terylene is a popular polyester. It can be drawn into very fine fibres that can be woven like any other yarn.

• PET is a very familiar form of polyester. It is used for making bottles, utensils, films, wires and many other useful products.

Why should we not wear synthetic clothes while working in in the kitchen or in a laboratory? What is the first statement of this audio clip?

• Synthetic fibres melt on heating. If the clothes catch fire, it can be disastrous.

• The fabric melts and sticks to the body of the person wearing it.

• We should, therefore, not wear synthetic clothes while working in in the kitchen or in a laboratory.

Why should we not wear synthetic clothes while working in in the kitchen or in a laboratory? What is the second statement of this audio clip?

• Synthetic fibres melt on heating. If the clothes catch fire, it can be disastrous.

• The fabric melts and sticks to the body of the person wearing it.

• We should, therefore, not wear synthetic clothes while working in in the kitchen or in a laboratory.

Why should we not wear synthetic clothes while working in in the kitchen or in a laboratory? What is the thired statement of this audio clip?

• Synthetic fibres melt on heating. If the clothes catch fire, it can be disastrous.

• The fabric melts and sticks to the body of the person wearing it.

• We should, therefore, not wear synthetic clothes while working in in the kitchen or in a laboratory.

Differentiate between natural and synthetic fibres. what is the first statement of this audio clip?

• Natural fibres are obtained from plants and animals.

• Synthetic fibres are made by human beings by chemical processing of petrochemicals.

• Example: cotton, wool, silk, etc.

• Example: rayon, nylon, polyester and acrylic

Differentiate between natural and synthetic fibres. what is the second statement of this audio clip?

• Natural fibres are obtained from plants and animals.

• Synthetic fibres are made by human beings by chemical processing of petrochemicals.

• Example: cotton, wool, silk, etc.

• Example: rayon, nylon, polyester and acrylic

Differentiate between natural and synthetic fibres. what is the third statement of this audio clip?

• Natural fibres are obtained from plants and animals.

• Synthetic fibres are made by human beings by chemical processing of petrochemicals.

• Example: cotton, wool, silk, etc.

• Example: rayon, nylon, polyester and acrylic

Differentiate between natural and synthetic fibres. what is the fourth statement of this audio clip?

• Natural fibres are obtained from plants and animals.

• Synthetic fibres are made by human beings by chemical processing of petrochemicals.

• Example: cotton, wool, silk, etc.

• Example: rayon, nylon, polyester and acrylic

“Even though plastics are very useful, they are not environment friendly.” Justify the statement. What is the first statement of this audio clip?

• Since plastic takes several years to decompose, it is not environment friendly.

• It causes environmental pollution.

• Besides, the burning process in the synthetic material is quite slow and it does not get completely burnt easily.

• In the process it releases lots of poisonous fumes into the atmosphere causing air pollution.