Question 6

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

(a) Threshing

(b) Sieving

(c) Winnowing

(d) Filtration

Q. While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour? ​

Q.

Question 4

Which amongst the following methods would be most appropriate to separate grains from bundles of stalks?

(a) Hand picking

(b) Winnowing

(c) Sieving

(d) Threshing

Q. Question 4
The term used for the process of separation of grains from the chaff is called

(a) sieving
(b) threshing
(c) winnowing
(d) hand picking

Q.

Question 1

Paheli bought some vegetables such as french beans, lady’s finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

(a) Winnowing

(b) Sieving

(c) Threshing

(d) Hand picking

Q.

Question 13

State whether the following statements are true or false.

(a) A mixture of oil and water can be separated by filtration.
(b) Water can be separated from salt by evaporation.
(c) A mixture of wheat grains and wheat flour can be separated by sieving.
(d) A mixture of iron filings and rice flour can be separated by magnet.
(e) A mixture of wheat grains and rice flakes can be separated by winnowing.
(f) A mixture of tea leaves and milk can be separated by decantation.