Question

the students of class VI participated actively in the swachata abhiyan for their school and its neighborhood. they separate out the biodegradable and non biodegradable wastes and put them in separate bins. their science teacher appreciated their work . She compared their work with methods of sieving and winnowing about which she taught them last week.

1. state the values displayed by the students of class VI?
2. Give one example of each of a situation in which sieving and winnowing can be used for bringing about the required separation?
3.Have a discussion in the class ,in which each group of students give one example of "separation "that can be compared with'some methods of separation' .studied by them .
More details:School =DAV public school
subject =Science
Class =VI
Page no. 68
question =value based question of chapter 4
Separation of substances
please answer its urgent. ​

Answer 1

2. Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger particles or impurities remain on the sieve. For example, in a flour mill, impurities like husk and stones are removed from wheat before grinding it.