Reeling of silk is

The general process that takes place at a sheep shearing shed is

Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the following would be the right gift for her to buy?

The rearing of silkworms for obtaining silk is called

Two drops of dilute sulphuric acid were added to 1g of copper sulphate powder and then small amount of hot water was added to dissolve it (Step I). On cooling, beautiful blue coloured crystals got separated (Step II). Step I and Step II are

Which of the following statements is incorrect for a chemical reaction?

Galvanisation is a process used to prevent the rusting of which of the following?

A man painted his main gate made up of iron, to

Which one of the following is a chemical change?

Transport of water in plants takes place through

In a tall tree which force is responsible for pulling water and minerals from the soil?

The filtration of blood is done by

Aquatic animals like fish excrete their wastes in gaseous form as

The lower chambers of heart is called

In which of the following parts of human body are sweat glands absent?

A certain type of cells helps in destruction of disease-causing microorganisms are known as

The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in

Which among the following contain haemoglobin?

The muscular tube through which stored urine is passed out of the body is called

The silkworm is (i) a caterpillar, (ii) a larva.